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and Video-Amp. AK4203 Datasheet |
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[AK4203]
AK4203
Stereo Cap-less LINE-Amp and Video-Amp
GENERAL DESCRIPTION
The AK4203 is an audio stereo cap-less line driver with 1-channel video driver. It eliminates the need for
large DC-blocking capacitors with a built-in Charge-pump circuit. The AK4203 achieves 2Vrms outputs
with excellent linearity 2Vrms output by single 3.3V power supply. The AK4203 is available in small 16-pin
TSSOP, saving the system space and cost.
FEATURE
Audio Line-Amp
Differential Input
Stereo Cap-less Amplifier (No DC-blocking capacitors required)
Line-Out level: 2.0Vrms
THD+N: -90dB
S/N: 102dB
Output gain: 6dB
Low-pass Filter: fc= 130kHz
Pop Noise Free Ground-referenced Output
Video Amp
1ch Stereo Cap-less Amplifier (No DC-blocking capacitors required)
Integrated Video Amplifier (+6dB)
Input Level: 1.5Vpp (max)
SN: 75dB(typ), Bandwidth: 100kHz ∼ 6MHz
LPF: -0.5dB@ 6.75MHz (typ), -43dB@27MHz (typ)
Video Mute Function
Power Supply: 3.0V ~ 3.6V
Ta: −20 ∼ 85°C
Package: 16TSSOP
MS1376-E-00
-1-
2012/02
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■ Block Diagram
[AK4203]
LIN+
LIN-
RIN+
RIN-
VIN
+
LOUT
-
VDD1
VDD2
VSS1
Charge
Pump
CVEE
CP
CN
+ VSS2
ROUT
-
Clamp
LPF
+
-
VMUTE
VOUT
Figure 1. AK4203 Block Diagram
MS1376-E-00
-2-
2012/02
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■ Ordering Guide
AK4203ET
AKD4203
■ Pin Layout
−20 ∼ +85°C
16pin TSSOP (0.65mm pitch)
Evaluation board for AK4203
[AK4203]
VIN
VPDN
CN
CP
LINN
LINP
RINP
RINN
1
2
3
4
5
6
7
8
AK4203
Top
View
16 VDD2
15 VSS2
14 VOUT
13 VEE
12 VSS1
11 VDD1
10 LOUT
9 ROUT
MS1376-E-00
-3-
2012/02
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