ENA0974A [SANYO]
Bi-CMOS IC FM Transmitter IC with Stereo Modulation; BI - CMOS IC的FM发射器IC，具有立体声调制
| 型号： | ENA0974A |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Bi-CMOS IC FM Transmitter IC with Stereo Modulation |
| 文件： | 总10页 (文件大小：119K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA0974A
Bi-CMOS IC
LV2283VB
FM Transmitter IC with
Stereo Modulation
Overview
The LV2283VB is an FM Transmitter IC. MPX block makes stereo modulated, composite signal from L and R sound
inputs. RF VCO includes FM modulation function. PLL synthesizer determines RF output frequency with I2C control.
Application
• Portable Memory Player
• Portable HDD Player
• Wireless Headphone
Features
• (Audio)
• (RF)
• (PLL)
Pilot tone system stereo modulation, audio attenuation
VCO, programmable gain driver amplifier
70 to 110MHz 100kHz step
• (Bus control) I2C bus control
• (Regulator) 2.8V LDO regulator
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Maximum input voltage
Minimum input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
max
Conditions
Ratings
Unit
V
V
Pin 6
7.0
+0.3
-0.3
500
CC
V
max
min
V
V
IN
CC
V
V
IN
Pd max
Topr
Ta ≤ 85°C, Mounted on a specified board*
mW
°C
°C
-40 to +85
Tstg
-55 to +150
* Specified board : 114.3mm×76.1mm×1.6mm, glass epoxy circuit board.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
's products or
equipment.
D2607 MS 20071211-S00002 / D1207 MS PC No.A0974-1/10
LV2283VB
Recommended Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Recommended supply voltage
Operating supply voltage range
V
Pin 6
Pin 6
3.3
CC
V
op
2.8 to 5.5
V
CC
AC Characteristics Ta = 25°C, V
= 3.3V, I2C bits = Default state, L and R input = 1kHz, 450mVrms,
CC
unless otherwise noted
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
max
Circuit current
Standby current
I
No input signal, Pin 6 current
8
10
1.0
mA
CC
ISTB
No input signal, I2C bit “STB” = “1”,
Pin 6 current
µA
Audio and MPX Blocks
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
max
Maximum audio input
Audio input frequency
Channel separation
VA max
FAF
Pin 1 and 24 input
900
15k
mVrms
Hz
Pin 1 and 24 input
20
20
-2
SEP
Pin 7, composite output, L→R, R→L
Pin 7, composite output
Pin 7, composite output
I2C bits “ST” =”1”
35
dB
Channel balance
CB
0
0.1
0.85
3.8
35
2
0.3
1.2
4.3
dB
Total harmonic distortion
Pilot tone output level
Composite output level
Audio mute
THD
%
PMOD
MPXOUT
MUTE
ATTSTEP
0.5
3.3
30
mVp-p
mVrms
dB
I2C bit “MUTE” = “1”
Audio attenuation adjustment step
I2C bit “ATT2 – ATT0” = “000” to “111”,
totally 8 steps.
1.5
2
2.5
dB
Crystal oscillator frequency (1)
FXOSC (1)
Pin 21 and Pin 22
76
kHz
RF Blocks
Ratings
typ
112
Parameter
RF output
Symbol
RFOUT
Conditions
Unit
min
max
f = 98MHz, I2C bit “RF2 - RF0” = “011”,
Pin 12 output
I2C bit “RF2 – RF0” = “000” to “111”,
totally 8 steps. Pin 12 relative output.
100kHz step
109
0.4
70
115
dBµV
RF output adjustment step
RF frequency
RFSTEP
FRF
0.9
1.4
dB
110
MHz
PLL Blocks
Ratings
Parameter
Symbol
Conditions
Unit
min
typ
max
I2C input “High” voltage
I2C input “Low” voltage
19kHz output voltage
VH
VL
0.8V
V
+0.3
V
V
CC
-0.3
CC
0.2V
CC
V19K
Pin 20. 19kHz output. I2C bit “19K” = “1”.
Load impedance = 47kΩ.
0.6V
0.8V
Vp-p
CC
70
CC
16
RF input frequency
FPLL
FXOSC (2)
FEXT
Step = 100kHz, See table 1
110
24
MHz
MHz
MHz
Crystal oscillator frequency (2)
External clock frequency
Pin 16
External clock injection to Pin 13
instead of 16MHz crystal oscillation.
When the LSI is standby mode, external
clock should be stop.
1
CP output current
ICP
CP voltage = 1.4V
30
µA
No.A0974-2/10
LV2283VB
Package Dimensions
unit : mm (typ)
3287
6.5
24
13
12
1
0.5
0.22
0.15
(0.5)
SANYO : SSOP24(225mil)
Pin Assignment
L-INPUT
L-CAP
GND
1
2
3
4
5
6
7
8
9
24 R-INPUT
23 R-CAP
22 76K OSC IN
21 76K OSC OUT
20 19K OUT
19 COUNTER RESET
18 SDA
MPX+B
GND
V
CC
COMPOSITE OUT
CP OUT
17 SCL
GND
16 XTAL
VCO 10
RF+B 11
15 GND
14 PLL+B
RF OUT 12
13 GND
No.A0974-3/10
LV2283VB
Block Diagram
24
23
22
21
20
19
18
17
16
15
14
13
Pre-
(19K)
emphasis
X'tal OSC
Shift Register
X'tal
OSC
(RF2-RF0)
V
CC
Switch
(P10-P0)
38kHz
1/2
100kΩ
38kHz
reset
reset
(MUTE,ST)
(ATT2-ATT0)
R-Counter
Phase DET
19kHz
1/2
P-Counter
(PILOT)
Switch
Attenuator
Charge Pump
VCO
10
2.8V
Regulator
Pre-
emphasis
1
2
3
4
5
6
7
8
9
11
12
AC Testing Circuit
V
CC
SW4
19K OUT
EXTERNAL
CLOCK
INPUTT
SW5
SW1
47kΩ
R-INPUT
+
16MHz
a
3.3kΩ 3.3kΩ
100nF
13
1µF
b
270pF
15
1µF
SDA
SCL
76KHz
22 21
24
23
20
19
18
17
16
14
SG INPUT
1
2
3
4
5
6
7
8
9
10
11
12
SW2
a
L-INPUT
+
1µF
+
390nH
100nF
RF OUT
10µF
1µF
b
SW3
b
V
CC
a
100nF
Stereo DEC
VA
No.A0974-4/10
LV2283VB
Pin Description
DC Voltage
Pin No.
1
Pin Name
L-INPUT
Description
Equivalent Circuit
(V)
0
Left channel input. If audio source DC
voltage is not 0V, AC coupling
6
4
capacitance is required. Pre-emphasis
capacitance should be required between
pin 1 (24) and 2 (23).
50kΩ
1kΩ
1
24
10kΩ
2
23
5
2
3
4
L-CAP
GND
0
0
See Pin 1
MPX+B
2.8
LDO regulator output for audio frequency
and MPX blocks. External decoupling
capacitance is required.
6
4
5
5
6
7
GND
0
V
3.3
0.05
CC
COMPOSITE
OUT
Stereo modulated output.
6
4
12kΩ
2kΩ
7
5
8
CP OUT
-
Charge pump current output.
6
11
30µA
30µA
8
9
9
GND
0
Continued on next page.
No.A0974-5/10
LV2283VB
Continued from preceding page.
DC Voltage
Pin No.
10
Pin Name
VCO
Description
Equivalent Circuit
(V)
2.2
Transistor BASE terminal for Colpitz
oscillator.
6
11
10
9
11
RF+B
2.8
LDO regulator output for RF blocks.
6
11
5
12
RF OUT
2.8
Collector output. Inductance should be
connected Between pin 11 and pin 12 for
getting resonant frequency and making
pin12 DC bias 2.8V.
6
11
450Ω
20Ω
12
13
13
14
GND
0
PLL+B
2.8
LDO regulator output for digital blocks.
6
14
5
15
GND
0
Continued on next page.
No.A0974-6/10
LV2283VB
Continued from preceding page.
DC Voltage
Pin No.
16
Pin Name
XTAL
Description
Equivalent Circuit
(V)
2.0
16MHz crystal is needed for PLL
reference frequency. If external clock is
injected to Pin 16, frequency should be
from 1MHz to 24MHz and N (integer) ×
200kHz.
6
14
When the IC is Standby mode, external
clock should be stop.
16
15
17
18
19
20
21
SCL
-
I2C clock input.
6
17
15
CMOS Logic Input
SDA
-
I2C data input.
6
18
15
CMOS Logic Input
COUNTER
RESET
3.3
Usually pin 19 should be kept “Logic High”
or opened (pull up 100kΩ makes pin 19
“Logic High” automatically).
6
100kΩ
When pin 19 is “Logic Low” level, internal
frequency counter from 76kHz to 19kHz is
reset.
1kΩ
19
15
CMOS Logic Input
19K OUT
-
19kHz output (same phase as pilot tone).
When I2C bit “19K”=0, Pin 20 is kept
“Logic Low” level.
6
20
15
CMOS Logic Output
76K OSC
OUT
2.0
For stereo modulator pilot signal and sub
carrier. 76kHz crystal should be
6
14
connected between Pin 21 and Pin 22
1kΩ
21
22
1MΩ
1kΩ
15
Continued on next page.
No.A0974-7/10
LV2283VB
Continued from preceding page.
DC Voltage
Pin No.
Pin Name
Description
Equivalent Circuit
(V)
0.7
22
23
24
76K OSC IN
R-CAP
See Pin 21
See Pin 1
See Pin 1
See Pin 21
See Pin 21
See Pin 21
0
0
R-INPUT
I2C Bus Definition
Table 1. I2C Bus Write Data Format
Bit
Name
Address Byte
Byte
1
ACK
A
MSB (1)
LSB
R/W
0
AD7
1
AD6
AD5
0
AD4
1
AD3
0
AD2
AD1
0
1
P9
1
0
P5
0
Control Byte 1
Control Byte 2
Control Byte 3
Control Byte 4
2
3
4
5
P10
0
P8
1
P7
1
P6
1
P4
1
P3
A
0
P2
1
P1
0
P0
0
19K
0
ST
1
PILOT
1
STB
0
MUTE
0
A
RES1
0
RES0
0
RF2
1
RF1
1
RF0
1
ATT2
0
ATT1
1
ATT0
1
A
R6
1
R5
0
R4
1
R3
0
R2
0
R1
0
R0
0
TEST
0
A
(1) : MSB is transmitted first.
Table 2. I2C Write Mode Description
Bit
AD7 – AD1
R/W
Name
Address bit
Description
LV2283VB requires address bits.
“0” for Write mode (Write mode only).
Read/Write
A
Acknowledge
Programmable counter
P10 – P0
11 bit Programmable counter. P0 = LSB, P10 = MSB.
RF Frequency = (P10×210 + P9×29 + ... P1×21 + P0) × 100kHz
Default state = “01111010100” (980)
19K
ST
19kHz output
MONO/ST selection
Pilot tone output
19K OUT (Pin 20) ON / OFF. “19K” = “0” for no output. “1” for 19kHz output (same phase as pilot tone).
Default state = “0”
Monaural/Stereo transmission mode selection. “ST” is set “0” for monaural mode (no pilot tone), “1” for
stereo transmission. Default state = “1”
PILOT
“1” for normal operation (default). “0” for NO pilot tone in composite output even if ST bit = “1” (Stereo
mode).
STB
Standby
Audio mute
“1” for standby mode. Default state = “0” for normal operation.
“1” for Audio mute. Default state = “0” for normal operation.
Reserved bits. Default state = “00” for normal operation.
MUTE
RES1, RES0
RF2 – RF0
Reserved bits
RF output adjustment
RF output voltage adjustment with 8 degree, 1dB steps. “RF2, RF1, RF0” = “111” for maximum. “000” is
minimum RF output. Default state = “111”
ATT2 – ATT0
R6 – R0
Audio attenuator
Audio attenuator for FM modulation fine adjustment is set by “ATT2, ATT1, ATT0” with 8 degree,
2dB steps. “111” is for 0dB attenuation. “000” is for 14dB attenuation. Default state = “011”.
7 bit Programmable counter. R0 = LSB, R6 = MSB.
Reference counter
Reference frequency should be set 100kHz.
{Crystal oscillator frequency (Pin 16)} / {(R6×26 + R5×25 ... + R1×21 + R0) × 2} = 100kHz.
Default state = “1010000” (80 × 2).
TEST
Test mode
For IC testing. Set “0” for normal operation.
“1” for counter testing mode. Default state = “0”
No.A0974-8/10
LV2283VB
I2C Bus Operation
SDA
SCL
Serial I/F Bus
Controller
(Master)
LV2283VB
(Slave)
Address Byte
Control Byte 1
Control Byte 4
Master
S
6
5
4
3
2
1
0 W
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
F
MSB
MSB First
LSB MSB
LSB
MSB
LSB
A
A
A
Slave
S → Start condition
F → Stop condition
A → Acknowledge
Time chart
tBUF tHD ; STA
tSU ; DAT
tSU ; STO
SDA
SCL
Start
condition
Stop
condition
tLOW
tR
tHIGH
tF
tHD ; DAT
Table 3. Timing specification
Ratings
Parameter
Symbol
Unit
min
typ
max
100
SCL clock frequency
fSCL
tBUF
kHz
µs
µs
µs
µs
µs
ns
ns
ns
µs
Bus free time between a STOP and START condition
Hold time START condition
4.7
4.0
4.7
4.0
0.0
tHD ; STA
tLOW
LOW period of the SCL clock
HIGH period of the SCL clock
Data hold time
tHIGH
tHD ; DAT
tSU ; DAT
tR
Data set-up time
250
Rise time of both SDA and SCL signals
Fall time of both SDA and SCL signals
Set-up time for STOP condition
1000
300
tF
tSU ; STO
4.0
I2C Bus AC Characteristics : Temp=25°C V
= 3.3V
Note : I2C Bus is a registered trademark of the Philips Co..
CC
No.A0974-9/10
LV2283VB
Application Circuit
R-INPUT
76KHz
22 21
24
23
20
19
18
17
16
15
14
13
Pre-
emphasis
X'tal OSC
Shift Register
X'tal
OSC
V
CC
Switch
1/2
1/2
R-Counter
Phase DET
P-Counter
VCO
Switch
Attenuator
Charge Pump
2.8V
Regulator
Pre-
emphasis
1
2
3
4
+
5
6
7
8
9
10
11
12
L-INPUT
V
CC
+
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using
products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
products described or contained herein.
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt
safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not
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Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
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This catalog provides information as of December, 2007. Specifications and information herein are subject
to change without notice.
PS No.A0974-10/10
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