Document
Audio Driver for TV
CXA3813N
Description
The CXA3813N is a headphone amplifier and 2-channel stereo audio line amplifiers IC. Each amplifier has a fixed gain and mute function. Pop noise of 2-channel stereo audio line amplifiers is free at power on/off and Mute. 1-channel stereo audio line amplifier has 2 stereo input multiplexer. The CXA3813N is suitable for a wide range of consumer audio applications, such as portable A/V players, settop boxes, and digital televisions. The device is offered in a space saving 24pin SSOP package.
Features
Headphone amplifier 2-channel audio line amplifier Operating voltage Operating current Pop noise free at power On/Off and mute Package
+12dB fixed gain Amplifier1: +12dB fixed gain Amplifier2: +12dB fixed gain, 2 stereo input multiplexer VCC_HP = VCC_AMP1 = 8 to 14V 12mA typ. (VCC_HP), 30mA typ. (VCC_AMP1) Amplifier1 and Amplifier2 SSOP24
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
-1-
E09724A21
Free Datasheet http://www.datasheet4u.com/
CXA3813N
Absolute Maximum Ratings
Item Supply voltage Operating temperature range Storage temperature range Junction temperature Power dissipation Thermal impedance
*1
Symbol VCC TA Tstg TJ(max) Pd JA JC
Rating 24.0 –25 to +85 –55 to +125 +125 (TJ(max) – TA) / JA *1 131.9 0.6
Unit V
C C C
—
C/W C/W
Glass fabric base epoxy two-layer board, 76mm 114mm, t = 1.6mm
Recommended Operating Conditions
Item Supply voltage Operating ambient temperature Symbol VCC Topt Min. 8.0 –25 Typ. 12.0 — Max. 14.0 +85 Unit V
C
-2Free Datasheet http://www.datasheet4u.com/
CXA3813N
Block Diagram
1
AMPEN
SEL
24
2
AMPMUTE
REFO
23
3
HPIL
CREF
22
4
HPOL
REF
CREFH
21
5
VCC_HP
AMP1IR
20
6
GND_HP
SEL = 0; AMP2IL/R0 select SEL = 1; AMP2IL/R1 select
AMP1OR
19
7
HPOR
AMP1OL
18
8
HPIR
1
0
0
1
AMP1IL
17
9
AMP2IL0
GND_AMP1
16
10
AMP2IL1
VCC_AMP1
15
11
AMP2OL
AMP2IR0
14
12
AMP2OR
AMP2IR1
13
-3Free Datasheet http://www.datasheet4u.com/
CXA3813N
Pin Description
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Pin name AMPEN AMPMUTE HPIL HPOL VCC_HP GND_HP HPOR HPIR AMP2IL0 AMP2IL1 AMP2OL AMP2OR AMP2IR1 AMP2IR0 VCC_AMP1 GND_AMP1 AMP1IL AMP1OL AMP1OR AMP1IR CREFH CREF REFO SEL Direction I I I O — — O I I I O O I I — — I O O I O O O I Description Amplifier enable control signal input Amplifier mute control signal input Headphone amplifier Lch input Headphone amplifier Lch output Headphone amplifier power Headphone amplifier ground Headphone amplifier Rch output Headphone amplifier Rch input AMP2 Lch selector input 0 AMP2 Lch selector input 1 AMP2 Lch output AMP2 Rch ou.