APA2120RI-TR 查看數據表（PDF） - Anpec Electronics
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APA2120RI-TR Datasheet PDF : 30 Pages
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APA2120/2121
Pin Function Description
Pin
Name
GND
PCBEN
HP/LINE
VOLUME
LOUT+
LLINEIN
LHPIN
PVDD
RBYPASS
LOUT-
LBYPASS
BYPASS
PC_BEEP
SE/BTL
ROUT-
CLK
VDD
RHPIN
ROUT+
SHUTDOWN
RLINEIN
No
1,12,
13,24
2
2
3
4
5
6
7,18
8
9
10
11
14
15
16
17
19
20
21
22
23
Config.
Description
Ground connection, Connected to thermal pad.
I/P BEEP mode control input, active H, for APA2120 only
I/P
Multi-input selection input, headphone mode when held high, line-in
mode when held low for APA2121 only.
Input signal for internal volume gain setting.
O/P Left channel positive output in BTL mode and SE mode.
I/P Left channel line input terminal, selected when HP/LINE is held low.
O/P
Left channel headphone input terminal, selected when HP/LINE is
held high.
Supply voltage only for power amplifier.
I/P Right channel bypass voltage.
O/P
Left channel negative output in BTL mode and high impedance in
SE mode.
I/P Left channel bias voltage generator.
Bias voltage generator
I/P PCBEP signal input
I/P
Output mode control input, high for SE output mode and low for
BTL mode.
O/P
Right channel negative output in BTL mode and high impedance in
SE mode.
Clock signal generator
Supply voltage for internal circuit excepting power amplifier.
I/P
Right channel headphone input terminal, selected when HP/LINE is
held high.
O/P Right channel positive output in BTL mode and SE mode.
I/P It will be into shutdown mode when pull low.
I/P
Right channel line input terminal, selected when HP/LINE is held
low.
Copyright ANPEC Electronics Corp.
6
Rev. A.1 - Mar., 2003
www.anpec.com.tw
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