SA1469XH Datasheet, PDF (4/11 Pages) Silan Microelectronics Joint-stock – 4-CH BTL DRIVER FOR CD PLAYER WITH 5.0V OUTPUT VOLTAGE

SA1469XH
(Continued)
Pin No.
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Symbol
IN2B
IN2A
OUT2B
OUT2A
GND
OPOUT
OPIN (-)
OPIN (+)
OUT3A
OUT3B
IN3A
IN3B
VCC
VCC
VREF
IN4B
IN4A
OUT4B
OUT4A
GND
I/O
I
Drive input
I
Drive input
O
Drive output
O
Drive output
--
Ground
O
Opamp output
I
Opamp input (-)
I
Opamp input (+)
O
Drive output
O
Drive output
I
Drive input
I
Drive input
--
Supply voltage
--
Supply voltage
I
2.5V bias voltage
I
Drive input
I
Drive input
O
Drive output
O
Drive output
--
Ground
Description
FUNCTIONAL DESCRIPTION
1. MUTE
Function
Thermal shutdown
External muting
Mute
○
○
Operation conditions
T≥175°C
V(mute)≤ 1.4V or open
1) The circuit is muted during thermal shutdown and during the mute-on state.In each case, only the drivers are
muted.
2) During mute ,the output pins remain at the internal bias voltage, roughly (Vcc-Vf)/2.
3) When the mute pin # 7 is open or the voltage of the mute pin # 7 is below 0.5V, the mute circuit is activated
so that the output circuit will be muted.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.4 2008.07.23
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