Specifications

Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 23TC5.1L CB 9.
9.2.3 Demultiplexer (IC 901)
The HCF4052B is a monolithic integrated circuit, fabricated in
Metal Oxide Semiconductor technology, available in DIP and
SOP packages.
The HCF4052B analog multiplexer/demultiplexer is a digitally
controlled analog switch, having low ON impedance, and very
low OFF leakage current. This multiplexer circuit dissipates
extremely low quiescent power over the full supply voltage
range, independent of the logic states of the control signals.
When a logic “1” is present at the inhibit input, all channels are
off. This device is a differential 4-channel multiplexer, having 2
binary control inputs, A and B, and an inhibit input. The two
binary input signals select 1 of 4 pairs of channels to be turned
on and connect the analog inputs to the outputs.
Figure 9-9 Demultiplexer
Table 9-3 Demultiplexer
9.2.4 Sound Processor (IC1001)
Table 9-4 Sound Processor
9.2.5 Dual Bridge Amplifier (IC 602)
The TDA7266SA is a dual bridge amplifier, specially designed
for LCD monitor, PC motherboard, TV, and portable radio
applications.
Figure 9-10 Dual Bridge Amplifier
PIN Symbol
1 and 2 Y CHANNELS IN/OUT
3 COMMON "Y" OUT/IN
4 and 5 Y CHANNELS IN/OUT
6INH
7 VEE
8 VSS
9B
10 A
11 and 12 X CHANNELS IN/OUT
13 COMMON "X" OUT/IN
14 and 15 X CHANNELS IN/OUT
16 VDD
Pin No. Pin Name Type Short Description
1 AVSUP Analog power supply
+5V
2 ANA_IN+ IN IF Input 1
3 ANA_IN- IN IF common
4 TESTEN IN Test pin
5 XTAL_IN IN Crystal oscillator
6 XTAL_OUT OUT Crystal oscillator
7 TP Test pin
8 D_CTR_I/O_1 IN/OUT D_CTR_I/O_1
9 D_CTR_I/O_0 IN/OUT D_CTR_I/O_0
10 ADR_SEL IN I2C BUS address select
11 STANDBYQ IN Stand-by ( Low-active)
12 I2C_CL IN/OUT I2C clock
13 I2C_DA IN/OUT I2C data
14 I2S_CL I2S clock
15 I2S_WS I2S word strobe
16 I2S_DA_OUT I2S data output
17 I2S_DA_IN1 I2S1 data input
18 ADR_CL ADR clock
G_16340_029.eps
100306
19 DVSUP Digital power supply +5
V
20 DVSS Digital ground
21 I2S_DA_IN2 I2S2 data input
22 RESETQ IN Power-on-reset
23 NC Not connected
24 NC Not connected
25 VREF2 Reference ground 2
High-voltage part
26 DACM_R OUT Loudspeaker out, right
27 DACM_L OUT Loudspeaker out, left
28 NC Not connected
29 VREF1 Reference Ground 1
High voltage part
30 SC1_OUT_R OUT Audio 1 output, right
31 SC1_OUT_L OUT Audio 1 output, left
32 NC Not connected
33 AHVSUP Analog power supply
8.0V
34 CAPL_M Volume capacitor MAIN
35 AHVSS Analog ground
36 AGNDC Analog reference voltage
High-voltage part
37 SC2_IN_L IN Audio 2 input, left
38 SC2_IN_R IN Audio 2 input, right
39 ASG Analog shield Ground
40 SC1_IN_L IN Audio 1 input, left
41 SC1_IN_R IN Audio 1 input, right
42 VREFTOP Reference voltage IF A/D
converter
43 MONO_IN IN Mono input
44 AVSS Analog ground
Pin No. Pin Name Type Short Description
G_16340_031.eps
100306