Tda1308; General Description; Features; Pinning - Hitachi 22LD4500UK Service Manual

11.12. TDA1308

11.12.1. General Description

The TDA1308 is an integrated class AB stereo headphone driver contained in an SO8 or a DIP8 plastic
package. The device is fabricated in a 1 mm CMOS process and has been primarily developed for portable
digital audio applications.

11.12.2. Features

• Wide temperature range
• No switch ON/OFF clicks
• Excellent power supply ripple rejection
• Low power consumption
• Short-circuit resistant
• High performance
• high signal-to-noise ratio
• High slew rate
• Low distortion
• Large output voltage swing.

11.12.3. Pinning

SYMBOL PIN
OUTA 1
INA(neg) 2
INA(pos) 3
V 4
SS
INB(pos) 5
INB(neg) 6
OUTB 7
V 8
DD

11.13. AN7522N

11.13.1. General description
AN7522N is a BTL 5.0W x 2ch Power Amplifier with Standby and Volume Function Silicon Monolithic
Bipolar IC. It is used for low frequency amplifier applications.

11.13.2. Pin Descriptions

Pin No Description
1 Vcc
2 Ch.1 Output (+)
3 GND (Ch.1 Output)
4 Ch.1 Output (-)
5 Standby
6 Ch.1 Input
DESCRIPTION
Output A (Voltage swing)
Inverting input A
Non-inverting input A
Negative supply
Non-inverting input B
Inverting input B
Output B (Voltage swing)
Positive supply
Pin No
7
8
9
10
11
12
PIN VALUE
Min : 0.75V, Max : 4.25V
Vo(clip) : Min : 1400mVrms
2.5V
0V
2.5V
Vo(clip) : Min : 1400mVrms
Min : 0.75V, Max : 4.25V
5V, Min : 3.0V, Max : 7.0V
Description
GND (Input)
Ch.2 Input
Volume
Ch.2 Output (-)
GND (Ch.2 Output)
Ch.2 Output (+)
15