PA4835L-P28-R [UTC]
Volume Control Circuit, 2 Channel(s), CMOS, PDSO28, LEAD FREE, TSSOP-28;
| 型号： | PA4835L-P28-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | Volume Control Circuit, 2 Channel(s), CMOS, PDSO28, LEAD FREE, TSSOP-28 光电二极管 商用集成电路 |
| 文件： | 总15页 (文件大小：422K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO.,LTD
PA4835
CMOS IC
STEREO 2.8W AUDIO POWER
AMPLIFIER WITH DC VOLUME
CONTROL AND SELECTABLE
GAIN
DESCRIPTION
The UTC PA4835 is a monolithic integrated circuit and designed
to provide DC volume control , and a stereo bridged audio power
amplifiers capable of producing 2.8W into 3Ω at 10% THD+N and
2.2W into 3Ω at 1.0% THD+N.. UTC PA4835 incorporated a DC
volume control, stereo bridge-tied and single-ended audio power
amplifiers, stereo docking outputs, and a selectable gain control,
makes it optimally suitable for notebook PC, multimedia monitors,
and other portable applications.
Lead-free:
PA4835L
Halogen-free:PA4835G
FEATURES
*Operating Voltage : 3.3V ~ 5V
*Stereo switchable bridged/single-ended power amplifiers
*DC Volume Control Interface , 0dB ~ -105dB
*Low Supply Current (13mA at stereo BTL)
*Low Shutdown Current(0.7μA, typ)
*Bridge-Tied Load (BTL) or Single-Ended-(SE) Modes Operation
*Output Power at 1% THD+N , VDD=5V
-2.2W/Ch (typ) into a 3Ω Load
-2.0W/Ch (typ) into a 4Ω Load
-1.2W/Ch (typ) into a 8Ω Load
*Output Power at 10% THD+N , VDD=5V
-2.8W/Ch (typ) into a 3Ω Load
-2.3W/Ch (typ) into a 4Ω Load
-1.5W/Ch (typ) into a 8Ω Load
*Single-ended mode:
- 1.0% THD+N at 95mW/Ch (typ) into 32Ω
*System Beep Detect
*Thermal shutdown protection circuitry
*High supply voltage ripple rejection
*Low Crossover Distortion
ORDERING INFORMATION
Ordering Number
Package
Packing
Normal
Lead Free
Halogen Free
PA4835-P28-R
PA4835-P28-T
PA4835-N28-R
PA4835-N28-T
PA4835L-P28-R
PA4835L-P28-T
PA4835L-N28-R
PA4835L-N28-T
PA4835G-P28-R
PA4835G-P28-T
PA4835G-N28-R
PA4835G-N28-T
TSSOP-28
TSSOP-28
HTSSOP-28
HTSSOP-28
Tape Reel
Tube
Tape Reel
Tube
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PA4835
CMOS IC
ORDERING INFORMATION(Cont.)
PIN CONFIGURATION
GND
28
27
Right Out+
VDD
1
2
Shutdown
Gain Select
Mode
26 Right Out-
3
4
Right Gain 2
Right Gain 1
GND
25
24
23
22
21
20
19
18
17
16
15
Mute
5
VDD
6
Dc Vol
7
Bypass
GND
Hp Sense
8
9
Right Dock
Right In
Beep In
Left In
GND
Left Gain 1
Left Gain 2
Left Out-
VDD
10
11
12
13
14
Left Dock
GND
Left Out+
PIN DESCRIPTION
PIN NO.
PIN NAME
GND
I/O
I
DESCRIPTION
1,8,14,20,23
Ground connection for circuitry.
Shutdown mode control signal input, place entire IC in shutdown mode when
held high, IDD=0.7μA
2
Shutdown
3
4
Gain Select
Mode
I
I
I
Gain select input pin
Mode select input pin
5
Mute
Mute control input pin
6,16,27
7
VDD
Supply voltage input pin
Dc Vol
I
O
I
Volume control function input pin
Right docking output pin
9
Right Dock
Right In
10
11
12
13
15
17
18
19
21
22
24
25
26
28
Right channel audio input pin
Beep In
I
Beep signal input pin
Left In
I
Left channel audio input pin
Left Dock
Left Out +
Left Out -
Left Gain 2
Left Gain 1
HP Sense
Bypass
O
O
O
Right docking output pin
Left channel positive output pin
Left channel negative output pin
Connect pin 2 of the external gain setting resistor for left channel
Connect pin 1 of the external gain setting resistor for left channel
Headphone sense control pin
I
Bypass pin
Right Gain 1
Right Gain 2
Right Out -
Right Out +
Connect pin 1 of the external gain setting resistor for right channel
Connect pin 2 of the external gain setting resistor for right channel
Right channel negative output pin
Right channel positive output pin
O
O
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PA4835
CMOS IC
BLOCK DIAGRAM
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PA4835
CMOS IC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VDD
RATINGS
6
UNIT
V
Supply Voltage
Operating Ambient Temperature
Junction Temperature
TOPR
TJ
0 ~ +70
+125
℃
℃
Storage Temperature
TSTG
-40 ~ +150
℃
Note: 1.Absolute maximum ratings are stress ratings only and functional device operation is not implied. The
device could be damaged beyond Absolute maximum ratings.
2.The device is guaranteed to meet performance specifications within 0℃~70℃ operating temperature
range and assured by design from –20℃~85℃.
THERMAL CHARACTERISTICS
PARAMETER
SYMBOL
θJA
RATINGS
UNIT
105
15
TSSOP-28
θJC
Thermal Resistance
℃/W
θJA
θJC
93
10
HTSSOP-28
Note: The θJA of HTSSOP-28 is given that exposed die attach pad is not soldered on PCB.
ELECTRICAL CHARACTERISTICS(VDD=5V, Ta =25℃, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
ENTIRE IC
Supply Voltage
VDD
VIH
VIL
3.3
4
5.5
V
V
SE/BTL High Input Voltage
SE/BTL Low Input Voltage
Quiescent Power Supply Current
Shutdown Current
0.8
25
V
IDD
VIN=0V, IO=0A
13
mA
μA
ISHD
VPIN 2= VDD
0.7
2.0
VOLUME ATTENUATORS
±0.5
Gain with VPIN 7 =5V
dB
dB
dB
dB
Attenuator Range
Mute Attenuation
CRANGE
Attenuation with VPIN 7 =0V
VPIN 5 =5V, BTL Mode
VPIN 5 =5V, SE Mode
-90
-88
-88
-105
AM
BTL MODE OPERATION
Output Offset Voltage
Output Noise Voltage
VOS
VN
VIN=0V
5
mV
RL=8Ω, A-Wtd Filter
RL=3Ω
RL=4Ω
30
μV
2.2
2.0
1.2
1.5
THD=1%,f =1kHz
Output Power
PO
W
%
RL=8Ω
THD=10%,f =1kHz
RL=8Ω
AVD=2, 20Hz < f <20kHz
RL=4Ω, PO =1W
RL=8Ω, PO=1W
RL=32Ω, PO =340mW
0.2
0.15
0.1
Total Harmonic Distortion + Noise
THD+N
RSRR
VRIPPLE =200mVRMS, RL=8Ω
Power Supply Rejection Ratio
Channel Separation
74
95
95
dB
dB
dB
CB=2.2μF, f =120Hz
XTALK f =1kHz , CB =2.2μF
VDD=5V, PO =1.1W, RL=8Ω
Signal-to-Noise Ratio
SNR
A-Wtd Filter
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PA4835
CMOS IC
ELECTRICAL CHARACTERISTICS(Cont.)
SE MODE OPERATION
Output Offset Voltage
Output Noise Voltage
VOS
VN
VIN=0V
5
mV
RL=1kΩ, A -Wtd Filter
THD=1%, f =1kHz, RL=32Ω
THD=10%, f =1kHz, RL=32Ω
AV= 1, VOUT =1VRMS, f =1kHz
RL=1Kω
40
μV
95
100
Output Power
PO
mW
%
0.01
Total Harmonic Distortion plus Noise
THD+N
PSRR
PO =75mW, RL=32Ω, AV = 1
f =1kHz
0.005
VRIPPLE =200mVRMS, f =120Hz
Power Supply Rejection Ratio
Channel Separation
58
95
dB
dB
dB
CB=2.2μF
XTALK f =1kHz , CB=2.2μF
PO =75mW,RL=32Ω,A -Wtd
Filter
Signal-to-Noise Ratio
SNR
102
TRUTH TABLE FOR LOGIC INPUTS
MUTE
MODE
HP SENSE
DC VOL CONTROL
Fixed Level
Fixed Level
Adjusted
BRIDGED OUTPUT
Vol.Fixed
Muted
SINGLE-ENDED
Vol.Fixed
0
0
0
0
1
0
0
1
1
X
0
1
0
1
X
Vol.Changed
Muted
Adjusted
Vol.Changed
Muted
Muted
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PA4835
CMOS IC
TYPICAL APPLICATION CIRCUIT
VDD
VDD
1μF
R_var
DC Vol Control
VDD
Ω
20k
20k
19
Ω
Internal gain select
3
Ω
100k
HP Sense
18
7
100kΩ
21
5
4
To Control Pin on
Headphone Jack
Mode
Control
Mute
Mode
20kΩ
0.068μF
13
10kΩ
20kΩ
10kΩ
Left Dock
- Left Out
+
17
-
+
Ω
20k
220μF
Left In
Ω
1K
Control Pin
20kΩ
20kΩ
12
11
10
9
-
+
Pin
Ring
+
15
28
-
+
0.33μF
+ Left Out
Ω
200k
Beep In
200k
Volume
Control
32 steps
Beep
Detect
To HP sense
Circuit
Bias
Right In
0.33μF
+
-
Ω
+
-
Right
Audio
Input
+ Right Out
+
20kΩ
Ω
20k
Sleeve
Tip
20kΩ
10kΩ
20kΩ
Right Dock
- Right Out
Headphone Jack
26
+
-
6,16,27
VDD
+
Power
Management
220μF
10kΩ
1KΩ
1,8,14,20,23
GND
Bypass
22
20kΩ
Click and Pop
Suppression
Circuitry
0.1μF 0.1μF 0.1μF
0.068μF
2.2μF
2
24
25
Shutdown
Ω
20k
20kΩ
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PA4835
CMOS IC
TYPICAL CHARACTERISTICS
For VDD=5V, THD+N vs Frequency
10
5
=5
V
VDD
RL =16Ω
Po=0.5W
BTL
2
1
0.5
0.2
AV=
2
AV=4
0.1
0.05
AV=8
0.02
0.01
50
20
100 200 500 1k 2k
Frequency (Hz)
5k 10k 20k
10
10
=5
VDD
RL=32Ω
Po=75mW
SE
V
VDD =5 V
5
2
5
RL =8Ω
Po=0.25W
SE
2
1
1
0.5
0.02
0.1
0.5
AV=
1
0.2
0.1
0.05
0.02
AV=1
AV=4
0.01
AV=
AV=
4
2
0.05
0.005
AV=
2
0.02
0.01
0.002
0.001
20
20
50 100 200 500 1k 2k
Frequency (Hz)
5k 10k 20k
50 100 200 500 1k 2k
Frequency (Hz)
5k 10k 20k
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PA4835
CMOS IC
TYPICAL CHARACTERISTICS(cont.)
10
5
VDD
=5
V
R L =20kΩ
Vin=1Vrms
SE
2
1
0.5
0.1
AV= 1
0.05
0.02
0.01
AV=
4
0.005
AV= 2
0.002
0.001
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
For VDD=3V, THD+N vs Frequency
10
10
5
VDD=3.3V
RL=8Ω
VDD=3.3V
RL=32Ω
PO=35mW
SE
5
Po=100mW
SE
2
1
2
1
0.5
0.5
0.2
0.1
0.2
0.1
AV=1
AV=1
AV=
4
0.05
0.05
AV=4
AV=2
0.02
0.01
AV=2
0.02
0.01
20
50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
20
50 100 200 500 1k 2k 5k 10k20k
Frequency (Hz)
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PA4835
CMOS IC
TYPICAL CHARACTERISTICS(cont.)
100
50
No filter
A_wtd filter
20
10
5
VDD=5V
RL =8Ω
2
1
AV =2V/V
BTL
20
50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
100
50
0
No filter
VDD =5V
RL=8Ω
Po=1W
AV
=2V/ V
BTL
-20
-40
-60
A_wtd filter
20
10
5
-80
-100
-120
f=1kHz
VDD=5V
Ω
RL =10k
2
1
AV
SE
=1V/
V
f=20kHz
20
50 100 200 500 1k 2k
Frequency (Hz)
5k 10k 20k
20
50 100 200 500 1k 2k
Frequency (Hz)
5k 10k 20k
12
10
8
0
VDD =5V
Ω
RL=32
μF
CF=0.22
-20
Po=75mW
A V
SE
=1V/V
CF=0.1μF
-40
-60
CF=0.068μF
6
4
2
-80
f=1kHz
VDD=5V
RL=8Ω
AV
-100
-120
=2V/
V
BTL
f=20kHz
0
20
50 100 200 500 1k 2k 5k 10k 20k
Frequency
20
50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
(Hz)
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PA4835
CMOS IC
TYPICAL CHARACTERISTICS(cont.)
0
-10
-20
VDD
RL =8Ω
Vin=200mVp
Cb=2.2μF
=5V
SE/BTL
-30
-40
-50
-60
-70
-80
20
50 100 200 500 1k 2k
Frequency (Hz)
5k
20k
10
5
DD=5 V
RL =4Ω
V
BTL
2
1
f=20kHz
0.5
0.2
0.1
f=1kHz
f=20Hz
0.05
0.02
0.01
100m
200m 300m 500m800m1
Output Power (W)
2
3
10
5
10
VDD =5
RL =16
BTL
V
Ω
=5V
RL=8Ω
VDD
5
BTL
2
1
2
1
f=20kHz
0.5
0.5
f=20kHz
0.2
0.1
0.2
0.1
f=1kHz
f=20Hz
f=1kHz
f=20Hz
0.05
0.05
0.02
0.01
0.02
0.01
1
10m 20m
50m 100m 200m 500m
Output Power
10m 20m 50m 100m 200m 500m
1
2
Output Power (W)
(W)
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CMOS IC
TYPICAL CHARACTERISTICS(cont.)
10
5
VDD=5V
RL=32Ω
SE
2
1
0.5
f=20kHz
f=20Hz
0.1
0.05
0.02
0.01
f=1kHz
0.005
0.002
0.001
10m
20m
50m 70m 100m 200m
30m
Output Power (W)
10
10
5
VDD=3.3V
RL=8Ω
BTL
VDD=3.3V
RL=4Ω
BTL
5
2
2
1
1
f=20kHz
f=20kHz
f=1kHz
0.5
0.5
0.2
0.1
f=1kHz
f=20Hz
0.2
0.1
0.05
0.05
f=20H
z
0.02
0.01
0.02
0.01
10m 20m 30m 50m 80m
200m 400m 800m
10m
1
20m
50m 100m 200m 500m
Output Power (W)
Output Power (W)
10
5
=3.3
V
VDD
Ω
RL=16
BTL
2
1
0.5
f=20kHz
f=1kHz
0.2
0.1
0.05
f=20H
z
0.02
0.01
10m 20m 30m 50m 70m
200m
500m
(W)
Output Power
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CMOS IC
TYPICAL CHARACTERISTICS(cont.)
10
5
10
5
VDD=3.3V
RL =32Ω
SE
=3.3
V
VDD
RL=8Ω
SE
2
1
2
1
0.5
0.5
f=20kHz
f=20kHz
0.2
0.1
0.2
0.1
f=20H
z
0.05
0.05
f=1kHz
f=20Hz
f=1kHz
0.02
0.01
0.02
0.01
10m 12m 15m 20m 25m 30m35m 42m 55m
Output Power (W)
10m
20m 30m
50m 70m 100m 200m
(W)
Output Power
0.2
0.18
0.16
Ω
RL=8
0.14
0.12
0.1
Ω
RL =16
0.08
0.06
0.04
0.02
0
Ω
RL=32
VDD=5V
THD<1%
SE
0
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4
Output Power
(W)
0.7
Ω
RL=8
0.6
0.5
0.4
0.3
0.2
0.1
0
RL=16Ω
RL=32Ω
V
VDD =5
THD<1%
BTL
0
0.25
0.5
0.75
1
1.25
1.5
(W)
Output Power
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PA4835
CMOS IC
TYPICAL CHARACTERISTICS(cont.)
10
5
VDD=5V
Ω
RL =20k
SE
2
1
0.5
0.1
0.05
f=20kHz
f=1kHz
0.02
0.01
0.005
f=20Hz
0.002
0.001
300m
100m 200m
1
2
3
500m 800m
Output Volltage (V)
10
5
VDD =3.3V
RL=5kΩ
docking
2
1
0.5
0.2
0.1
f=20kHz
0.05
0.02
f=1kHz
f=20Hz
0.006
100m
200m 300m 500m 700m 1
Output Volltage (V)
2
3
VDD=5V
BTL
2.5
2
1.5
1
THD=10%
0.5
0
THD=1%
4
8 12 16 20 24 28 3236 40 44 48 5256 60 64
Resistance (Ω)
Load
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PA4835
CMOS IC
TYPICAL CHARACTERISTICS(cont.)
0.34
0.32
0.3
1.1
1
VDD=3.3V
SE
VDD=3.3V
BTL
0.28
0.26
0.24
0.9
0.8
0.7
0.6
0.22
0.2
0.18
0.16
0.14
0.12
0.1
0.5
0.4
0.3
0.2
0.1
0
THD=10%
0.08
0.06
0.04
0.02
0
THD=10%
THD=1%
THD=1%
4
8 12 16 20 24 28 32 36 40 44 48 52 56 60
64
4
8 12 16 20 24 28
40 44 48 5256 60 64
32 36
Load Resistance (Ω)
Load Resistance (Ω)
2
VDD =5V
RL =8Ω
BTL
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
THD=10%
THD=1%
2.5
3
3.5
4
4.5
5
5.5
Supply Voltage, VDD (V)
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PA4835
CMOS IC
UTC 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 UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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