ML22Q274 [ROHM]
ML22Q274/ML22Q284/ML22Q294有内置闪存，用于存储语音代码数据，ML22Q274可以通过时钟同步串行接口控制，ML22Q284可以独立控制，ML22Q294可以通过I2C控制。 车载质量的语音合成LSI。ML22Q274配备了一个D类扬声器放大器，使得在单个芯片上实现语音再现的解决方案成为可能。;
| 型号： | ML22Q274 |
| 厂家： | 
ROHM |
| 描述： | ML22Q274/ML22Q284/ML22Q294有内置闪存，用于存储语音代码数据，ML22Q274可以通过时钟同步串行接口控制，ML22Q284可以独立控制，ML22Q294可以通过I2C控制。 车载质量的语音合成LSI。ML22Q274配备了一个D类扬声器放大器，使得在单个芯片上实现语音再现的解决方案成为可能。 语音合成 时钟 放大器 存储 闪存 |
| 文件： | 总38页 (文件大小：1935K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FEDL22Q274-03
Issued: October 4, 2021
ML22Q274
ADPCM Speech Synthesis LSI for Automotive
■ GENERAL DESCRIPTION
ML22Q274 is Speech Synthesis LSI with built-in Flash memory that stores speech data. ML22Q274 support the Clock
synchronization Serial interface and supports on-vehicle quality.
By integrating all the functions required for voice output into a single chip, this LSI can be more easily incorporated in
compact portable devices.
● Playback time：(Maximum number of phrases 30 When a phrase is selected)
Maximum playback time (sec) (at fs = 6.4 kHz)
Product name
Flash capacity (bit)
4bitADPCM2
27.6
16bitPCM
6.9
ML22Q274
692K
Notes: Flash capacity shows the numerical value of only a voice area
● Speech Synthesis method:
4-bit ADPCM2
8-bit Nonlinear PCM
8-bit PCM , 16-bit PCM
(Method can be specified for each phrase)
● Flash capacity:
● Sampling frequency (Fs):
692 Kbit (30 phrases selection),688 Kbit (62 phrases selection)
8.0/16.0/32.0 kHz, 6.4/12.8/25.6 kHz, 10.7/21.3 kHz
(Can be specified for each phrase)
● Speaker driving amplifier:
● CPU command interface:
● Maximum number of pharases:
D-class amplifier (driven by 8 Ω)
Synchronous serial interface
30 phrases or 62 phrases
● Disconnection detection function /Speaker pin short detection function
● Source oscillation frequency:
● Power supply voltage:
● Flash memory rewritable time:
● Operating temperature range:
● AEC-Q100:
4.096 MHz (Typ) (internal)
2.0 to 5.5 V
80 times
–40OC to +105OC
Compliant
● Package:
20-pin plastic TSSOP
ML22Q274-NNNTD/ML22Q274-xxxTD
(xxx: ROM code No.)
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ML22Q274
The following table shows the differences from ML22Q284, ML22Q294.
Parameter
MCU interface
ML22Q274
ML22Q294
ML22Q284
Clock synchronization Serial
I2C
Standalone
692 Kbit
692 Kbit (when 30 phrases
are selected)
←
Flash capacity
688 Kbit (when 62 phrases
are selected)
4-bit ADPCM2
8-bit Nonlinear PCM
8-bit PCM
←
←
Playback method
16-bit PCM
Maximum number of phrases:
Sampling frequency (kHz)
30/62
←
←
30
6.4/8.0/10.7/12.8/
←
16.0/21.3/25.6/32.0
4.096 MHz (internal
oscillation)
←
←
Clock frequency
Low-pass filter
FIR interpolation filter
D-class amplifier
←
←
←
←
←
←
Speaker driving amplifier
Speaker driving amplifier output
load
8Ω
1 W (Ta = -40 to +85°C)
←
←
Speaker driving amplifier output
voltage
0.8 W (Ta = -40 to +105°C)
Edit ROM function
Volume control
Yes
←
←
←
←
←
←
32 levels
4 ms to 1024 ms
(4 ms/step)
Silence insertion
Repeat function
Yes
←
←
←
←
←
←
←
←
Power supply voltage
Operating temperature range
Package
2.0 to 5.5 V
-40 to +105°C
20-pin TSSOP
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ML22Q274
■ BLOCK DIAGRAMS
DVDD
Address
Regulator
16bit
Multiplexer
692Kbit
Flash
VPP
DGND
Controller
VDDL
Phrase
Address Latch
16bit
Address Counter
ADPCM/PCM
Synthesizer
SPI
CSB
SCK
SI
Interface
LPF
TEST
SPVDD
SPGND
Timing
Controller
BUSYB
D-class
Speaker
Amplifier
OUTPUT
Interface
SPM
SPP
OSC
(internal)
RESET_N
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■ PIN CONFIGURATIONS (TOP VIEW)
20-Pin Plastic TSSOP
RESET_N
TEST
1
2
20
19
SPP
SPM
3
18 VPP
SPGND
SPVDD
4
17
16
15
14
13
12
11
NC
NC
BUSYB
DGND
VDDL
5
6
SCK
7
SI
DVDD
NC
CSB
8
9
NC
NC
10
NC
NC：Unused pin
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ML22Q274
■ PIN DESCRIPTION
Initial value
(At the
RESET_N
Input)
Initial value
(At
standby)
Pin
Symbol
I/O
Description
1
2
3
SPP
SPM
O
O
-
Hi-Z
Hi-Z
-
Hi-Z
Hi-Z
-
Positive (+) output pin of the speaker amplifier built-in
Negative (-) output pin of the speaker amplifier built-in.
SPGND
Ground pin for the speaker amplifier.
Power supply pin for the speaker amplifier
Connect a bypass capacitor of 0.1 μF or more between this pin and SPGND
4
SPVDD
-
-
-
pin.
BUSY output pin. When BUSYB use mode is set, the "L" level is outputted
during playback. When disconnection is detected with disconnection
detection function, the "L" level is outputted.
5
BUSYB
O
Hi-Z
1
BUSYB unused mode and logic inversion can be set with Speech LSI Utility.
6
7
DGND
VDDL
-
-
-
-
-
-
Digital ground pin.
Regulator output pin for internal logic circuitry.
Connect a capacitor of 10 μF or more between this pin and DGND pin
Digital power supply pin.
8
DVDD
CSB
-
I
-
-
Connect a capacitor of 0.1 μF or more between this pin and DGND pin.
Chip select pin.
Internal oscillation starts in response to turning “H” level down to “L” level,
and input through Clock synchronization Serial interface becomes available.
Pull-up resistor is built in.
13
1
1
14
15
SI
I
I
1
1
1
1
Input pin for Clock synchronization Serial interface data.
SCK
Input pin for Clock synchronization Serial interface clock.
Power supply pin for rewriting Flash memory.
18
19
VPP
-
I
-
-
Fix this pin to GND except when rewriting Flash memory
TEST
0
0
Test pin. Fix this pin to DGND.
Reset pin.
Input “L” level for initialization, when power is turned on, or when voltage
falls below recommended operation power supply voltage range. After the
power supply voltage is stable, drive this pin to “H” level.
20
RESET_N
I
0
-
1
-
9
10
11
12
16
17
Unused pin.
N.C.
-
Leave this pin open.
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■ ABSOLUTE MAXIMUM RATINGS
(DGND = 0 V)
Unit
Parameter
Symbol
Condition
Rating
DVDD
SPVDD
Power supply voltage
-0.3 to + 7.0
V
V
Internal logic power supply
voltage
VDDL
-0.3 to +3.6
Ta = 25 °C
Flash power supply voltage
Input voltage
VPP
VIN
PD
-0.3 to +9.5
-0.3 to VDD +0.3
1
V
V
Power dissipation
W
Applied to pin other than SPP or
SPM
ISC1
-12 to +11
mA
Output short-circuit current
Storage temperature
ISC2
SPP pin, SPM pin
-
600
mA
°C
TSTG
-55 to +150
■ RECOMMENDED OPERATING CONDITIONS
(DGND = 0 V)
Unit
Parameter
Symbol
Condition
-
Range
2.0 to 5.5
DVDD
SPVDD
Power supply voltage
V
Flash memory write
Flash memory write
2.7 to 5.5
7.7 to 8.3
Flash power supply voltage
Flash memory rewrite cycles
VPP
V
N
-
80
times
TOP1
TOP2
-
-40 to +105
0 to +40
Operating temperature range
°C
Flash memory write
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■ ELECTRICAL CHARACTERISTICS
●
DC Characteristics
DVDD = SPVDD = 2.0 to 5.5 V, DGND = SPGND = 0 V, Ta = -40 to +105°C
Parameter
“H” input voltage
“L” input voltage
Symbol
VIH
Condition
-
Min.
0.7 × DVDD
Typ.
-
Max.
DVDD
Unit
V
VIL
-
0
-
0.3 × DVDD
V
“H” output voltage 1
“L” output voltage 1
“H” input current 1
VOH1
VOL1
IIH1
IOH = －0.5 mA
IOL = 0.5mA
VIH = DVDD
DVDD－0.5
-
-
-
-
0.5
1
V
V
µA
-
-
VIH = DVDD
TEST pin
VIL = DGND
VIL = DGND
“H” input current 2
“L” input current 1
“L” input current 2
IIH2
IIL1
IIL2
0.02
-1
0.3
-
1.5
-
mA
µA
-1.5
-0.3
-0.02
mA
RESET_N，CSB pin
VOH= DVDD= SPVDD
(High impedance)
BUSYB，SPP，SPM pin
VOH= DVDD
(Nch Open drain)
BUSYB pin
VOL=DGND=SPGND
(High impedance)
BUSYB，SPP，SPM pin
VOL=DGND
“H” output current 1
“H” output current 2
“L” output current 1
“L” output current 2
IOOH1
IOOH2
IOOL1
IOOL2
-
-
-
-
-
1
1
-
µA
µA
µA
µA
-
-1
-1
(Pch Open drain)
BUSYB pin
-
No output load
DVDD= SPVDD=3.0V
No output load
DVDD= SPVDD=5.0 V
IDD1
IDD2
-
-
4.0
6.0
6.0
10
Supply current during
playback
mA
Awaiting command supply
current
IDDC1
DVDD=SPVDD=5.0 V
-
-
-
-
3.0
0.5
0.5
0.5
4.096
4.096
5.0
3.0
8.0
16.0
4.158
4.219
mA
µA
IDDS1
IDDS2
IDDS3
Ta ≤ 40°C
Standby supply current
Ta ≤ +85°C
Ta ≤ +105°C
-10 to +50°C
-40 to +105°C
4.034
3.973
Source oscillation
frequency
fOSC
MHz
● Characteristics of Analog Circuitry
DVDD = SPVDD = 2.0 to 5.5 V, DGND = SPGND = 0 V, Ta = -40 to +105°C
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
SPM, SPP output load
resistance
RLSP
-
8
-
-
Ω
SPVDD = 5.0 V, Sin wave f = 1 kHz
RLSP = 8 Ω, THD ≥ 10%
Ta = -40 to +85°C
SPVDD = 5.0 V, Sin wave f = 1 kHz
RLSP = 8Ω, THD ≥ 10%
Ta = -40 to +105°C
-
-
1.0
0.8
-
-
W
W
Speaker amplifier output
voltage
PSPO
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ML22Q274
●
AC Characteristics
Parameter
DVDD = SPVDD = 2.0 to 5.5 V, DGND = SPGND = 0 V, Ta = -40 to +105°C
Symbol
tRST
Condition
Min.
100
0
Typ.
Max.
Unit
µs
RESET_N input pulse width
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Start time SPVDD after starting DVDD
Initialization time after reset release
tVDD
-
ns
tINIT
-
-
65
-
ms
ms
µs
tESCK1
tESCK2
tCSH
Oscillation stop
2
SCK input enable time from CSB fall edge
Oscillating
10
-
SCK hold time from CSB rise edge
Data setup time from SCK rise edge
Data hold time from SCK rise edge
SCK cycle
-
-
-
-
-
-
200
50
-
ns
tDIS
-
ns
tDIH
50
-
ns
tSCYC
tSCKH
tSCKL
tVCYC
500
200
200
20
-
ns
SCK “H” level pulse width
SCK “L” level pulse width
-
ns
-
ns
Playback time
-
-
-
ms
BUSYB change time from "H" to "L", after a command is
inputted
tCB
-
-
-
400
µs
CSB “H” level pulse width
tCSW
tOSST
tNCM
-
-
-
1
-
-
-
-
-
ms
µs
Oscillation stop time, after playback
500
10
Next command transmit time in the case of the playback
-
ms
Disconnection judging by the DISCONNECT command
start time
tDCDS
tDCDE
tSD
-
-
-
1.5
-
-
-
-
ms
s
Disconnection judging by the DISCONNECT command
end time
-
-
1
BUSYB change time from "L" to "H", after over-current
detection of a speaker amplifier
80
µs
Processing time before playback start
Processing time after playback start
tPLBF
tPLAF
-
-
0.3
-
-
2.1
1.2
ms
ms
0.15
Fade-out time at Change Immediately mode or Change
Immediately Once mode
tFDO
-
-
22
-
ms
Note: Output pin load capacitance = 45 pF (max.)
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■ FUNCTIONAL DESCRIPTION
●
Clock synchronization Serial interface data.
The CSB, SCK, SI pins are used to input the command data.
Driving the CSB pin from “H” to “L” level enables the serial MCU interface.
After the CSB pin becomes “L” level, the command is input through the SI pin from the MSB or LSB synchronized with
the SCK clock. The command shifts in through the SI pin at the rising edge of the SCK clock pulse. Then, a command is
executed at the rising edge of the eighth pulse of the SCK clock when 1-byte command is selected and the 16th pulse of
the SCK clock when 2-byte command is selected.
After a command input, should return the CSB pin to "H" level.
The initial value of the SCK pin, MSB/LSB of the SI pin data input, and 1-byte command/2-byte command are all
chosen with Speech LSI Utility.
Please refer to a "Code Option Setting Item" for details.
Input timing when 1-byte command is selected
•Normal (“H” Level)，MSB fast selected
CSB
SCK
D7 D6 D5 D4 D3 D2 D1 D0
(MSB) (LSB)
SI
•Reversal (“L” Level)，LSB fast selected
CSB
SCK
D0 D1 D2 D3 D4 D5 D6 D7
(LSB) (MSB)
SI
Input timing when 2-byte command is selected
•Normal (“H” Level)，MSB fast selected
CSB
SCK
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
(MSB) (LSB) (MSB) (LSB)
SI
1st byte.
2nd byte.
•Reversal (“L” Level)，LSB fast selected
CSB
SCK
D8 D9 D10 D11 D12 D13 D14 D15 D0 D1 D2 D3 D4 D5 D6 D7
(MSB) (LSB)
SI
1st byte.
2nd byte.
(LSB)
(MSB)
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● Speech Synthesis method
Supporting four types of Speech Synthesis methods, which are 4bit ADPCM2, 8-bit nonlinear PCM, 8-bit PCM, and
16-bit PCM. Any of these can be selected based on the characteristics of the voice to be played back.
Speech Synthesis Compression
Suitable waveform
Characteristics
method
rate*1
Unique scheme which is a refined version of 4bit
4-bit ADPCM2
1/4
Normal voice sound wave ADPCM Offers higher sound quality with better
waveform followability.
A part around the center of the waveform is played
back with a sound quality equivalent to 10 bits.
8-bit Nonlinear PCM
1/2
Sound including high
frequency components
8-bit PCM
1/2
1
Normal 8-bit PCM.
(such as sound effects)
16-bit PCM
Normal 16-bit PCM.
Note 1: When the same sampling frequency is used.
● Memory Allocation and Creating Voice Data
The voice code data consists of a voice management area, a voice data area, and an edit ROM area.
The voice control area manages voice data of 30 phrases or 62 phrases.
The voice area contains actual waveform data.
The edit ROM area contains data for effective use of voice data. For the details, refer to the section of “Edit ROM
Function”. The edit ROM area only available when the edit ROM is used.
The ROM data is created using Speech LSI Utility.
The 30 or 62 phrases can be switched using the Speech LSI Utility.
Please refer to a "Code Option Setting Item" for details.
Voice code data configuration(30 phrase selection)
Voice code data configuration(62 phrase selection)
0x00000
0x00000
Voice control area
0x001FF
0x00200
Voice control area
0x003FF
0x00400
Voice data area /
Edit ROM area*1
Voice data area /
Edit ROM area*1
0x159FF
0x159FF
*1： Edit ROM area depends on creation of the data
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● Playback Time and Flash Capacity
The playback time depends on the memory capacity, sampling frequency, and the playback method. The equation to
know the playback time is shown below. But this is not applied if the edit ROM function is used.
1.024 × （Voice data area/Edit ROM area）（Kbit）
Playback time [sec]＝
Sampling frequency [kHz] × Bit length
(Bit length is 4 at the 4-bit ADPCM2 and 8/16 at the PCM.)
In the case that the sampling frequency is 8 kHz, algorithm is 4-bit ADPCM2, the playback time is approx. 22.1 seconds.
1.024 × 692（Kbit）
≈ 22.1 [sec]）
Playback time＝
8（kHz） × 4(bit)
Make the playback time of one phrase more than 20 msec.
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● Edit ROM function
The edit ROM function makes it possible to play back multiple phrases in succession. The following functions are set
using the edit ROM function:
• Continuous playback: There is no limit to set the number of times of the continuous playback. It depends on the
Flash capacity only.
• Silence insertion function: 4 ms to 1,024 ms
*Note: Silent insertion time varies for ±1 ms depends on the sampling frequency.
An independent phrase generated by edit ROM shall be 20 ms or longer.
It is possible to use voice ROM effectively to use the edit ROM function.
An example of the ROM structure, in a case of using the edit ROM function is as follows.
Example 1) Phrases using the Edit ROM Function
Phrase 2
Phrase 3
Phrase 4
Phrase 5
Phrase 6
Phrase 7
A
B
C
D
D
A
E
B
C
D
D
E
D
A
B
D
Silence (4 ms)
E
C
Silence (20 ms)
Example 2) Structure of the ROM storing contents of Example 1
Voice control area
0x00200
A
B
D
C
Voice data area
E
Edit ROM area*1
*1：Information on phrases 2 to 7 stored
0x159FF
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● Playback mode setup
Five playback modes are available. Can be set up for every phrase.
Set when the voice code data is generated.
Play Once mode
This mode is playback once.
All the commands become invalid during playback.
Phrase(m)
Phrase(n)
SI
BUSYB*1
Voice output
Status
Good morning
Playing Phrase(m)
Awaiting
Standby
*1：When used with default “H” level, CMOS output
command
Command
Standby
Next command must be input in the standby state after the playback ends.
Phrase(m)
Phrase(n)
SI
BUSYB*1
Voice output
Status
Good morning
Playing Phrase(m)
Good afternoon
Playing Phrase(n)
Awaiting
command
Awaiting
command
Command
Command
Standby
Standby
Standby
*1：When used with default “H” level, CMOS output
Scheduled Play Once mode
This mode is playback once.
When the next phrase is inputted during playback, after playback of the present phrase ends, playback of the next phrase
starts.When the following phrase is inputted into playback, after playback of the present phrase is completed, playback of
th following phrase starts.
Phrase(m)
Phrase(n)
SI
BUSYB*1
Voice output
Status
Good morning
Playing Phrase(m)
Good afternoon
Playing Phrase(n)
Awaiting
command
Standby
Command
Standby
*1：When used with default “H” level, CMOS output
When a plurality of commands are input, the last command input at the end of the phrase is valid.
In the following case, the phrase (n) is not played back because the last command is STOP command.
Phrase(m)
Phrase(n)
STOP
SI
BUSYB*1
Voice output
Status
Good morning
Awaiting
Playing Phrase(m)
Command
Standby
command
Standby
*1：When used with default “H” level, CMOS output
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Change Immediately Once mode
This mode is for playing back once.
When the following phrase is inputted into playback, playback of the present phrase is ended on the way, and playback
of the following phrase starts.
Phrase(m)
Phrase(n)
SI
BUSYB*1
Good afternoon
Playing Phrase(n)
Voice output
Status
Good morning
Awaiting
command
Fading out
Standby
Playing Phrase(m)
*1：When used with default “H” level, CMOS output
Command
Standby
When a plurality of commands are input, the last command input at the end of the phrase is valid.
In the following case, the last input phrase (o) is played back.
Phrase(m)
Phrase(n)
Phrase(o)
SI
BUSYB*1
Voice output
Status
Good morning
Good evening
Playing Phrase(o)
Awaiting
command
Fading out
Standby
Playing Phrase(m)
*1：When used with default “H” level, CMOS output
Command
Standby
Scheduled Play mode
Once the playback starts, it is repeated until the next command is input.
The next command input during the playback is executed after the playback ends.
When a plurality of commands are input, the last command input at the end of the phrase is valid, as in Scheduled Play
Once.
SI
Phrase(m)
STOP command
BUSYB*1
Voice output
Status
Good morning
Playing Phrase(m)
Good morning
Playing Phrase(m)
Awaiting
command
Standby
Command
Standby
*1：When used with default “H” level, CMOS output
Change Immediately mode
Once the playback starts, it is repeated until the next command is input.
When the next command is input, the phrase being played back is terminated, and the next command is executed.When
the following command is inputted into playback, playback of the present phrase is ended on the way, and playback of
the following command starts.
When a plurality of commands are input, the last command input at the end of the phrase is valid, as in Change
Immediately Once.
Phrase(m)
SI
STOP command
BUSYB*1
Voice output
Status
Good morning
Playing Phrase(m)
Good morning
Awaiting
command
Playing Phrase(m)
Standby
Command
Standby
Fading out
*1：When used with default “H” level, CMOS output
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● Volume setup function
Each phrase can set up the volume setup.
The volume is set when voice code data is generated and when PHRASE command is input.
For the setting of volume when PHRASE command is input, refer to “PHRASE command” in Description of Command
Functions.
The relationship between the setting and volume at the time of generating voice code data is as follows.
Value
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
Volume [dB]
+2.98
Value
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
13h
14h
Volume [dB]
-0.41
Value
15h
16h
17h
18h
19h
1Ah
1Bh
1Ch
1Dh
1Eh
1Fh
Volume [dB]
-6.87
+2.70
-0.83
-7.79
+2.40
-1.28
-8.82
+2.10
-1.75
-9.99
+1.78
-2.25
-11.34
-12.94
-14.90
-17.44
-21.04
-27.31
OFF
+1.45
-2.77
+1.11
-3.34
+0.76
-3.94
+0.39
-4.58
+0.00
-5.28
-6.04
● Function of setting wait time before and after playback (WS1, WS2, WS3, WS4)
Wait time before playback (WS1, WS2) and after playback (WS3, WS4) can be set for each phrase.
Set when the voice code data is generated.
Phrase
SI
D7-D0 or D15-D0
BUSYB*1
WS1 WS2
Command
WS3 WS4
Awaiting
SPP/SPM
Status
Hi-Z
Standby
Playing
Standby
Awaiting
*1：When used with default “H” level, CMOS output
WS1: Time after inputting a phrase address, until SPP/SPM pins are enabled.
WS2: Time after SPP/SPM pins are enabled, until playback is started.
WS3: Time after playback is completed, until SPP/SPM pins are disabled.
WS4: Time after SPP/SPM pins are disabled, until it will be in a standby state.
WS1-WS4 can be arbitrarily set up between 0 to1020 ms (4 ms unit).
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● Speaker Pin Short Detection Function
The speaker pin short detection function detect the short-circuit between SPP pin and SPM pin, or between SPP/SPM pin
and GND during playback.
When short-circuit of a speaker pin is detected, the playback will be stopped automatically, BUSYB pin will become "H"
level, and LSI will become in a standby state.
Speaker short detection prevents IC destruction, but the detection circuit is effective to prevent destruction caused by
sudden accidents, and is not intended for use in the condition like short detection occurs continuously.
This function can be set up with the option screen of Speech Utility.
Please refer to a "Code Option Setting Item" for details.
Phrase
Phrase
SI
D7-D0 or D15-D0
D7-D0 or D15-D0
BUSYB*1
Speaker pin short
SPP/SPM
Status
Hi-Z
Hi-Z
Speaker pin short
Speaker pin short
Playing
Playing
Standby
Command
Command
Standby
Awaiting
*1：When used with default “H” level, CMOS output
Awaiting
Forced outage by speaker
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■ Commands
The following commands are used for the LSI. After setting the voice code data in the flash memory of this LSI, be sure
to use the voice playback command.
Command
STOP
Description
Stop command.
The STOP command becomes effective for phrase other than those in Play Once mode and
Scheduled Play Once mode.
Disconnection detection command.
DISCONNECT
PHRASE
Speaker disconnection is detected. The STOP command must be input after using the
DISCONNECT command.
Playback command.
Playback phrase is selected from 30 phrases.
●
Command configuration
1-byte command and 2-byte command can be selected.
When the 2-byte command is selected, the volume can be expanded to 32 levels and the number of phrases can be
expanded to 62 phrases.
PHRASE command is allocated with a bit sequence other than the set values for STOP command and DISCONNECT
command.
These are set when the voice code data is generated.
Please refer to a "Code Option Setting Item" for details.
The command configuration when the initial value (STOP command is set to be 00000b and DISCONNECT command is
set to be 00001b) is as follows.
(1) 1-byte command (eight levels of volume and 30 phrases)
First byte
Command
D7
*
D6
*
D5
*
D4
0
D3
0
D2
0
D1
0
D0
0
STOP
DISCONNECT
*
*
*
0
0
0
0
1
V2
V1
V0
0
0
0
1
0
PHRASE
：
V2
V1
V0
1
1
1
1
1
(2) 2-byte command (initial value: 32 levels of volume and 62 phrases)
First byte
Second byte
Command
D15 D14 D13 D12 D11 D10
D9
*
D8
*
D7
*
D6
*
D5
0
D4
0
D3
0
D2
0
D1
0
D0
0
STOP
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
DISCONNECT
*
*
*
*
0
0
0
0
0
1
V4
V3
V2
V1
V0
*
*
0
0
0
0
1
0
PHRASE*1
：
：
*
*
*
V4
V3
V2
V1
V0
*
*
1
1
1
1
1
1
Note: This bit is not used for command identification, so any value can be set.
Note 1: When using a 2-byte command, the combination of 0xff in the 1st byte and 0xff in the 2nd byte is ignored.
For the phrase number 111111b, set the "*" part (arbitrary value) to "0".
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Any bit sequence can be set for STOP command and DISCONNECT command.
The following shows examples of a case where a non-initial value is set.
When STOP command is changed from the initial value, the number of phrase available decreases by one.
(1) 1-byte command (when STOP command is set to be 11111b and DISCONNECT command is set to be 00001b)
First byte
Command
D7
*
D6
*
D5
*
D4
0
D3
0
D2
0
D1
0
D0
0
-*1
DISCONNECT
*
*
*
0
0
0
0
1
V2
V1
V0
0
0
0
1
0
PHRASE
：
V2
*
V1
*
V0
*
1
1
1
1
1
1
1
1
0
1
STOP
Note 1: 00000b cannot be set to PHRASE command. 29 phrases from 00010b to 11110b can be set to PHRASE
command.
(2) 2-byte command (when STOP command is set to be 111110b and DISCONNECT command is set to be 000010b)
First byte
Second byte
Command
D15 D14 D13 D12 D11 D10
D9
*
D8
*
D7
*
D6
*
D5
0
D4
0
D3
0
D2
0
D1
0
D0
0
-*1
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
PHRASE
*
*
*
*
0
0
0
0
0
1
DISCONNECT
*
*
*
*
*
*
*
0
0
0
0
1
0
V4
V4
V4
*
V3
V3
V3
*
V2
V2
V2
*
V1
V1
V1
*
V0
V0
V0
*
*
*
0
0
0
0
1
1
PHRASE
*
*
：
*
*
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
0
1
STOP
PHRASE*2
*
*
V4
V3
V2
V1
V0
*
*
Note: This bit is not used for command identification, so any value can be set.
Note 1: 00000b cannot be set to PHRASE command. 29 phrases from 00010b to 11110b can be set to PHRASE
command.
Note 2: When using a 2-byte command, the combination of 0xff in the 1st byte and 0xff in the 2nd byte is ignored.
For the phrase number 111111b, set the "*" part (arbitrary value) to "0".
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ML22Q274
● STOP command
(1) 1-byte command selection（initial value）
・command
*
*
*
0
0
0
*
0
*
0
*
(2) 2-byte command selection（initial value）
・command
*
*
*
*
*
*
*
0
0
0
0
0
0
*：Since it is a bit that is not used to identify the command, it can be set to any value.
The STOP command is used to stop the playback. BUSYB pin will become “H”, if the playback is stopped.
The STOP command becomes effective for the phrase waiting to be played in Scheduled Play Once mode, and in
Scheduled Play modem, Change Immediately Once mode, and Change Immediately mode.
STOP command used for phrases played back in Play Once mode or Scheduled Play Once mode, the STOP is ignored.
When STOP command is input in Scheduled Play mode, the playback stops after the phrase is played back to the end.
When STOP command is input in Change Immediately Once mode or Change Immediately mode, the voice fades out,
and the playback stops.
Operations where STOP command is effective are described below.
STOP command operation in the case of Scheduled Play Once mode
PHRASE1
PHRASE2
STOP COMMAND
SI
BUSYB*1
SPP/SPM
D7-D0 or D15-D0
D7-D0 or D15-D0
D7-D0 or D15-D0
Hi-Z
Playing (playback phrase 1 to the last)
Status
Standby
Command
Awaiting
Standby
*1：When used with default “H” level, CMOS output
STOP command operation in the case of Scheduled Play mode
PHRASE
STOP COMMAND
SI
BUSYB*1
SPP/SPM
D7-D0 or D15-D0
D7-D0 or D15-D0
Hi-Z
Playing (playback phrase to the last)
Status
Standby
Command
Awaiting
Standby
*1：When used with default “H” level, CMOS output
STOP command operation in the case of Change Immediately Once mode or Change Immediately mode
PHRASE
STOP COMMAND
SI
BUSYB*1
SPP/SPM
D7-D0 or D15-D0
D7-D0 or D15-D0
Hi-Z
Playing
Fading out
Status
Standby
Command
Standby
*1：When used with default “H” level, CMOS output
Awaiting
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● DISCONNECT command
(1) 1-byte command selection（initial value）
・command
*
*
*
0
0
0
*
0
*
1
*
(2) 2-byte command selection（initial value）
・command
*
*
*
*
*
*
*
0
0
0
0
0
1
*：Since it is a bit that is not used to identify the command, it can be set to any value.
The DISCONNECT command is used to diagnose whether the speaker is disconnected or not.
The command cannot be used during voice playback. The command shall be used during standby (no playback).
Disconnection detection result is output to BYSYB pin. "L” is output when the speaker is disconnected, and outputs "H”
when the speaker is not disconnected. Please input the STOP command to transition to standby state, after you use the
DISCONNECT command.
DISCONNECTcommand
STOP
D7-D0 or D15-D0
D7-D0 or D15-D0
SI
tDCDS
BUSYB*1
Status
Disconnection judgment
(L: disconnect H: Connect)
Under speaker disconnection
detection
Disconnection detection
result output
Standby
Command
Command
Standby
Awaiting
*1：When used with default “H” level, CMOS output
When no STOP command is input after the execution of DISCONNECT command, the disconnection detection
automatically stops in one second, and transition to standby occurs.
DISCONNECTcommand
D7-D0 or D15-D0
SI
tDCDS
tDCDE
BUSYB*1
Disconnection judgment
(L: disconnect H: Connect)
Under speaker disconnection
detection
Disconnection detection
result output
Standby
Status
Command
Standby
Awaiting
*1：When used with default “H” level, CMOS output
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● PHRASE command
(1) 1-byte command selection
・command
V2 V1 V0 F4 F3 F2 F1 F0
(2) 2-byte command selection
・command
*
*
*
V4 V3 V2 V1 V0
*
*
F5 F4 F3 F2 F1 F0
*：Since it is a bit that is not used to identify the command, it can be set to any value.
PHRASE command is playback command. Specifies an address of a phrase to be played back.
Command that is not set to be STOP command or DISCONNECT command is set to be PHRASE command.
An address of phrase to be played back is set when voice code data is generated with Speech LSI Utility.
Timings of PHRASE command are shown below.
Volume
Phrase
SI
D7-D0 or D15-D0
BUSYB*1
SPP/SPM
Hi-Z
Awaiting command
Playing
Status
Standby
Command
*1：When used with default “H” level, CMOS output
Set the playback Phrase with F4-F0 or F5-F0.
① 1-byte command selection（initial value）
F4
0
F3
0
F2
0
F1
1
F0
0
Playing Phrase
Phrase0
：
：
1
1
1
1
1
Phrase29
② 2-byte command selection（initial value）
F5
0
F4
0
F3
0
F2
0
F1
1
F0
Playing Phrase
Phrase0
：
0
：
1
1
1
1
1
1
Phrase61
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The volume can be set up with V2-V0 or V4-V0 set.
This is used to playback voice with a volume other than one set when the voice code data is generated.
(1) When 1-byte command is selected.
V2
V1
V0
Volume [dB]
Volume set at
the time of
0
0
0
generating voice
code data is
used*1
0
0
0
1
1
1
1
0
1
1
0
0
1
1
1
0
1
0
1
0
1
+2.98
+1.78
0
-2.25
-5.28
-9.99
-21.04
*Note 1: For edited phrase, volume set for each registered phrase is used
(2) When 2-byte command is selected.
V4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
V3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
V2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
V1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
V0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Volume [dB]
+2.98
V4
V3
V2
V1
V0
Volume [dB]
-3.34
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
+2.70
+2.40
+2.10
+1.78
+1.45
+1.11
+0.76
+0.39
+0.00
-0.41
-0.83
-1.28
-1.75
-2.25
-2.77
-3.94
-4.58
-5.28
-6.04
-6.87
-7.79
-8.82
-9.99
-11.34
-12.94
-14.90
-17.44
-21.04
-27.31
Volume set at the
time of
generating voice
code data is
used*1
*Note 1: For edited phrase, volume set for each registered phrase is used
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■ TIMING DIAGRAMS
● Power-On Timing
5V
DVDD
tVDD
5V
SPVDD
RESET_N
BUSYB*1
tRST
VIH
VIL
VOH
VOL
Hi-Z
Indefinite
OSC
(internal)
Oscillation stopped
Oscillating
Oscillation stopped
tINIT
VOH
Hi-Z
Hi-Z
SPP
SPM
VOL
VOH
VOL
Performing a reset
Initializing
Standby
Status
*1： Used with default “H” level, CMOS output
Turn on DVDD and SPVDD simultaneously, or turn on SPVDD after turning on DVDD.
Turn on DVDD and SPVDD simultaneously, or turn on SPVDD after turning on DVDD.
When DVDD or SPVDD falls below recommended operation power supply voltage range, “L” level must be
input to RESET_N pin.
● Power down timing (RESET_N pin)
tRST
RESET_N
Hi-Z
BUSYB*1
Indefinite
Oscillation
stopped
OSC
(internal)
Oscillating
Oscillating
tINIT
SPP
SPM
Playing
Initializing
Standby
Status
*1：Used with default “H” Level, CMOS output
Performing a reset
When DVDD or SPVDD falls below recommended operation power supply voltage range, “L” level must be
input to RESET_N pin.
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●
Clock synchronization Serial interface timing
When 1-byte command is selected.
(When Normal (“H” level) is selected: SCK initial value is “H” level)
VIH
CSB
VIL
tESCK1
tSCKH
tCSH
(tESCK2
)
VIH
VIL
SCK
SI
tDIS tDIH
D7
tCB
tSCYC
tSCKL
VIH
VIL
D6
D5
D4
D3
D2
D1
D0
VOH
BUSYB*1 VOL
*1： Used with default “H” Level, CMOS output
(When Reversal (“L” level) is selected: SCK initial value is “L” level)
VIH
CSB
VIL
tESCK1
(tESCK2
tSCKH
tCSH
)
VIH
VIL
SCK
tDIS tDIH
D7
tCB
tSCKL tSCYC
D5
VIH
VIL
D6
D4
D3
D2
D1
D0
SI
VOH
VOL
BUSYB*1
*1： Used with default “H” Level, CMOS output
When 2-byte command is selected.
(When Normal (“H” level) is selected: SCK initial value is “H” level)
VIH
CSB
VIL
tESCK1
(tESCK2
tSCKH
tCSH
)
VIH
VIL
SCK
SI
tDIS tDIH
D15
tCB
tSCYC
tSCKL
VIH
VIL
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
1st byte.
2nd byte.
VOH
BUSYB*1 VOL
*1： Used with default “H” Level, CMOS output
(When Reversal (“L” level) is selected: SCK initial value is “L” level)
VIH
CSB
VIL
tESCK1
(tESCK2
tCSH
tSCKH
)
VIH
VIL
SCK
SI
tDIS tDIH
D15
tCB
tSCKL tSCYC
D13
VIH
VIL
D14
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
1st byte.
2nd byte.
VOH
BUSYB*1 VOL
*1： Used with default “H” Level, CMOS output
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● Play Oncemode timing
After playback of phrase (m) ends, playback request for next phrase (n) is accepted and the phrase (n) is played back.
All the commands become invalid during playback of phrase (m).
CSB
D7-D0 or D15-D0
SI
tCSH
SCK
tESCK1
tCB
VOH
VOL
BUSYB*1
OSC
(internal)
Oscillating
tPLBF
WS1
WS2
tVCYC
Stabilizing
oscillation
Speaker enable
(internal)
SPP
SPM
Hi-Z
Hi-Z
Awaiting command
Standby
Playing
Status
Command processing
VIH
CSB
tESCK1
VIL
D7-D0 or D15-D0
SI
tCSH
SCK
tCB
VOH
VOL
BUSYB*1
OSC
(internal)
発振中
Oscillating
tPLAF
tOSST
tPLBF
WS3 WS4
WS1
WS2
Speaker
enable
Stabilizing
oscillation
(internal)
SPP
SPM
Hi-Z
Hi-Z
Playing
Playing
Status
Awaiting oscillation
Standby
Command processing
Awaiting
command
*1：Used with default “H” Level, CMOS output
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● Scheduled Play Once mode and Scheduled Play mode Timing (Continuous Play)
In response to playback request for the next phrase (n), the phrase (m) is played back to the end, and then playback of
the phrase (n) starts.
tCSW
CSB
※1
tNCM
Phrase (n)
Phrase (m)
D7-D0 or D15-D0
D7-D0 or D15-D0
SI
tCSH
tESCK2
tCSH
SCK
tESCK1
tCB
VOH
VOL
BUSYB*1
OSC
(internal)
Oscillating
WS1(m)
WS2(m)
tPLBF
Stabilizing
oscillation
Speaker enable
(internal)
SPP
SPM
Hi-Z
Hi-Z
Awaiting command
Standby
Playing phrase (m)
Status
Command processing
VIH
CSB
SI
VIL
VIH
VIL
VIH
VIL
SCK
VOH
VOL
BUSYB*1
OSC
(internal)
Oscillating
WS3(n)
WS4(n)
tPLAF
tOSST
Speaker enable
(internal)
SPP
SPM
Hi-Z
Hi-Z
Playing
Playing phrase (n)
Status
Awaiting oscillation
*1：Used with default “H” Level, CMOS output
Standby
*Under Scheduled Play mode, playback is stopped by STOP command.
Note 1: In Scheduled Play Once mode, the phrase (n) is played back immediately after the end of the playback of the phrase
(m), in response to an input of a playback request (PHRASE command) for the next phrase (phrase (n)) within tNCM
.
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● Change Immediately Once mode and Change Immediately mode Timing (Continuous Play)
After inputting the next PHRASEn command(Phrase(n)), fade-out of the playback(Phrase(m)) is carried
out and thePhrase(n) playback is started.
CSB
tCSW
フレーズ(m)
D7-D0 or D15-D0
SI
tCSH
SCK
tESCK1
tCB
VOH
VOL
BUSYB*1
OSC
(internal)
Oscillating
tPLBF
WS1(m)
WS2(m)
Stabilizing
oscillation
Speaker enable
(internal)
Hi-Z
Hi-Z
SPP
SPM
Awaiting command
Standby
Playing phrase (m)
Status
Command processing
VIH
VIL
CSB
Phrase (n)
VIH
D7-D0 or D15-D0
SI
tESCK2
VIH
tCSH
SCK
VIL
tFDO
Phrase (m) voice stop
Oscillating
VOH
VOL
BUSYB*1
OSC
(internal)
tOSST
tPLAF WS3(n)
WS4(n)
Speaker enable
(internal)
SPP
SPM
Hi-Z
Hi-Z
Status
Playing
Playing phrase (n)
Fade out processing Awaiting oscillation
*1：Used with default “H” Level, CMOS output
Standby
・Under Change Immediately mode, playback is stopped by STOP command.
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● Scheduled Play Once mode and Scheduled Play mode Timing voice stop timing
After STOP command is input, the phrase is played back until the end, and the playback stops.
tCSW
CSB
STOP command
Phrase (m)
D7-D0 or D15-D0
D7-D0 or D15-D0
SI
tESCK2
tCSH
tCSH
SCK
tESCK1
tCB
VOH
VOL
BUSYB*1
OSC
(internal)
Oscillating
tPLBF
WS1
WS2
Stabilizing
oscillation
Speaker enable
(internal)
SPP
SPM
Hi-Z
Hi-Z
Awaiting command
Standby
Playing phrase
Command processing
Status
VIH
VIL
CSB
VIH
VIL
SI
SCK
VIH
VIL
VOH
VOL
BUSYB*1
OSC
(internal)
Oscillating
WS3(n)
WS4(n)
tPLAF
tOSST
Speaker enable
(internal)
Hi-Z
Hi-Z
SPP
SPM
Standby
Playing
(Play until the end of phrase)
Awaiting oscillation stop
*1：Used with default “H” Level, CMOS output
Status
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● Change Immediately Once mode and Change Immediately mode voice stop timing
After STOP command is input, the voice fades out, and the playback stops.
CSB
tCSW
Phrase (m)
D7-D0 or D15-D0
SI
tCSH
SCK
tESCK1
tCB
VOH
VOL
BUSYB*1
OSC
(internal)
Oscillating
tPLBF
WS1
WS2
Stabilizing
oscillation
Speaker enable
(internal)
SPP
SPM
Hi-Z
Hi-Z
Playing phrase
Status
Awaiting command
Standby
Command processing
VIH
VIL
CSB
STOP command
VIH
D7-D0 or D15-D0
SI
tCSH
tESCK2
SCK
VIH
VIL
tFDO
VOH
VOL
BUSYB*1
OSC
(internal)
Oscillating
tPLAF
WS3
WS4
tOSST
Speaker enable
(internal)
Hi-Z
Hi-Z
SPP
SPM
Playing
Fade out processing
Awaiting oscillation stop
*1：Used with default “H” Level, CMOS output
Standby
Status
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● Disconnection detection timing
VIH
CSB
VIL
DISCONNECT command
D7-D0 or D15-D0
SI
tCSH
SCK
tESCK1
tCB
tDCD(min)
VOH
VOL
BUSYB*1
Stabilizing
oscillation
OSC
Oscillating
(internal)
Disconnection detecting
Status
Awaiting command
Standby
Command processing
VIH
VIL
CSB
STOP command
D7-D0 or D15-D0
SI
tESCK2
tCSH
SCK
tCB
tOSST
BUSYB*1
OSC
(internal)
Oscillating
Disconnection detecting
Standby
Awaiting oscillation
*1：Used with default “H” Level, CMOS output
Status
Command processing
● Speaker short detection timing
tSD
VOH
BUSYB*1
VOL
tOSST
OSC
(internal)
Oscillating
Speaker enable
(internal)
Speaker short
detection
(internal)
Hi-Z
Hi-Z
SPP
SPM
Playing
Short detection processing
Standby
*1：Used with default “H” Level, CMOS output
Status
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■
Code Option Setting Item
Items set on Code Option Setting screen for Speech LSI Utility are as follows.
・Speaker pin short detection function
☐ (Not used)
Use of speaker pin short detection function
☐ (Used)
・Command setting
〇1 byte (communicate with 1-byte command)
〇2 byte (communicate with 2-byte command)
Command type
STOP/DISCONNECT Command
〇Standard
Command bit sequence
Set 0_0000b (1-byte command)
Set 00_0000b (2-byte command)
Set 0_0001b (1-byte command)
Set 00_0001b (2-byte command)
Set any bit sequence
STOP command
DISCONNECT command
STOP command
〇Custom
Set any bit sequence
(Set value different from STOP command)
DISCONNECT command
・BUSYB Pins Setting
Use of BUSYB
Initial State
〇L level Output
〇H level Output
Condition
BUSYB pin status
Fixed to “L” output
Fixed to “H” output
*
*
☐ (Not used)
〇CMOS
Output initial value “L” with CMOS output
Output initial value “L” with Nch open drain
output
Output initial value HiZ with Pch open drain
output
〇Nch Open Drain
〇Pch Open Drain
〇L level Output
〇Hi-Z
〇CMOS
Hiz output
☐ (Used)
Output initial value “H” with CMOS output
Output initial value HiZ with Nch open drain
output
〇Nch Open Drain
〇H level Output
Output initial value “H” with Pch open drain
output
Hiz output
〇Pch Open Drain
〇Hi-Z
*: Setting value invalid
・Clock synchronization Serial interface setting (SPI setting)
Input serial data from LSB
Input serial data from MSB
〇LSB first
〇MSB first
Data transfer type
Clock polarity
Use with initial value of SCK pin set to “H” level
Use with initial value of SCK pin set to “L” level
〇Normal (H Level)
〇Normal (L Level)
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■ Event Setting Item
Items set on Event Setting screen for Speech LSI Utility are as follows.
・Playback mode
Set playback mode suitable for target playback, with reference to “Playback mode” in FUNCTIONAL DESCRIPTION.
・Volume setup
Set playback mode suitable for target playback, with reference to “Volume setup function” in FUNCTIONAL
DESCRIPTION.
・Setting Wait time before and after volume playback
Set desired Wait time with reference to “Function of setting wait time before and after playback (WS1, WS2, WS3,
WS4)”.
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■ TERMINATION OF THE VDDL PIN
The VDDL pin is the regulator output that is power supply pin for the internal logic circuits. Connect a capacitor between
this pin and the ground in order to prevent noise generation and power fluctuation.
The recommended capacitance value is shown below. However, it is important to evaluate and decide using the own
board.
Also, start the next operation after each output voltage is stabilized.
Recommended
capacitance value
Pin
Remarks
VDDL
10 µF ±20%
The larger the connection capacitance, the longer the settling time.
■ POWER SUPPLY WIRING
The power supplies of this LSI are divided into the following two:
• Power supply for logic circuitry (: DVDD)
• Power supply for speaker amplifier (: SPVDD)
The example of power connection is shown below
DVDD
DGND
SPVDD
SPGND
5V
DVDD
DGND
3V
SPVDD
SPGND
5V
- Turn on DVDD and SPVDD simultaneously, or turn on SPVDD after turning on DVDD.
- Turn off DVDD and SPVDD simultaneously, or turn off DVDD after turning on SPVDD.
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■ APPLICATION CIRCUIT
RESET_N
MCU
CSB
SCK
SI
BUSYB
TEST
VPP
SPP
SPM
SPVDD
DVDD
5V
0.1µF
10µF
VDDL
0.1µF
DGND
SPGND
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■ PACKAGE DIMENSIONS
Notes for Mounting the Surface Mount Type Package
The surface mount type packages are very susceptible to heat in reflow mounting and humidity absorbed in storage. Therefore,
before you perform reflow mounting, contact a ROHM sales office for the product name, package name, pin number, package
code and desired mounting conditions (reflow method, temperature and times).
PCB Layer
PCB
JEDEC 4layers
JEDEC 2layers
(W/L/t= 76.2 / 114.3 / 1.6 (mm))
Air cooling conditions
Calm(0m/sec)
0.28[W]
63.7[°C /W]
69.4[°C /W]
0.48[°C /W]
Heat resistance (θja)
Heat resistance (θjc)
Maximum power consumption of LSI (PMax)
At 1W into 8Ω playback
0.46[℃/W]
TjMax of this LSI is 125 °C. TjMax is expressed with the following formulas.
TjMax=TaMax+θja×PMax
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■ REVISION HISTORY
Page
Document No
FEDL22Q274-01
FEDL22Q274-02
Date
Description
Previous Current
Edition
Edition
Mar 05, 2021
Mar 30, 2021
-
-
Formal 1st edition.
SPP, SPM terminal output short-circuit current value change.
6
6
(Before change)
(After change)
300mA
600mA
16
17
35
-
16
17
35
36
Speaker short-circuit detection warning added.
Added a note on using commands.
FEDL22Q274-03
Oct 4, 2021
Describe the thermal resistance information of the package.
Added "Mounting area for package lead soldering to PC boards".
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Notes
1) The information contained herein is subject to change without notice.
2) When using LAPIS Technology Products, refer to the latest product information (data sheets, user’s manuals, application
notes, etc.), and ensure that usage conditions (absolute maximum ratings, recommended operating conditions, etc.) are within
the ranges specified. LAPIS Technology disclaims any and all liability for any malfunctions, failure or accident arising out of
or in connection with the use of LAPIS Technology Products outside of such usage conditions specified ranges, or without
observing precautions. Even if it is used within such usage conditions specified ranges, semiconductors can break down and
malfunction due to various factors. Therefore, in order to prevent personal injury, fire or the other damage from break down or
malfunction of LAPIS Technology Products, please take safety at your own risk measures such as complying with the
derating characteristics, implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures.
You are responsible for evaluating the safety of the final products or systems manufactured by you.
3) Descriptions of circuits, software and other related information in this document are provided only to illustrate the standard
operation of semiconductor products and application examples. You are fully responsible for the incorporation or any other
use of the circuits, software, and information in the design of your product or system. And the peripheral conditions must be
taken into account when designing circuits for mass production. LAPIS Technology disclaims any and all liability for any
losses and damages incurred by you or third parties arising from the use of these circuits, software, and other related
information.
4) No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of LAPIS Technology
or any third party with respect to LAPIS Technology Products or the information contained in this document (including but
not limited to, the Product data, drawings, charts, programs, algorithms, and application examples, etc.). Therefore LAPIS
Technology shall have no responsibility whatsoever for any dispute, concerning such rights owned by third parties, arising out
of the use of such technical information.
5) The Products are intended for use in general electronic equipment (AV/OA devices, communication, consumer systems,
gaming/entertainment sets, etc.) as well as the applications indicated in this document. For use of our Products in applications
requiring a high degree of reliability (as exemplified below), please be sure to contact a LAPIS Technology representative and
must obtain written agreement: transportation equipment (cars, ships, trains, etc.), primary communication equipment, traffic
lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems, etc.
LAPIS Technology disclaims any and all liability for any losses and damages incurred by you or third parties arising by using
the Product for purposes not intended by us. Do not use our Products in applications requiring extremely high reliability, such
as aerospace equipment, nuclear power control systems, and submarine repeaters, etc.
6) The Products specified in this document are not designed to be radiation tolerant.
7) LAPIS Technology has used reasonable care to ensure the accuracy of the information contained in this document. However,
LAPIS Technology does not warrant that such information is error-free and LAPIS Technology shall have no responsibility
for any damages arising from any inaccuracy or misprint of such information.
8) Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS Directive.
LAPIS Technology shall have no responsibility for any damages or losses resulting non-compliance with any applicable laws
or regulations.
9) When providing our Products and technologies contained in this document to other countries, you must abide by the
procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the US Export
Administration Regulations and the Foreign Exchange and Foreign Trade Act..
10) Please contact a ROHM sales office if you have any questions regarding the information contained in this document or LAPIS
Technology's Products.
11) This document, in part or in whole, may not be reprinted or reproduced without prior consent of LAPIS Technology.
(Note) “LAPIS Technology” as used in this document means LAPIS Technology Co., Ltd.
Copyright 2021 LAPIS Technology Co., Ltd.
2-4-8 Shinyokohama, Kouhoku-ku, Yokohama 222-8575, Japan
https://www.lapis-tech.com/en/
38/38
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