APA2057A
TypicalApplicationCircuit
ROUT+
R_CH
Ci(AMP_R)
R_ch
INR_A
for AMP
4 W
2.2mF
ROUT-
LOUT+
Internal
gain
setting
Ci(AMP_L)
L_CH
L_ch
INL_A
for AMP
2.2mF
4 W
VDD(5V)
LOUT-
BIAS
10KW
R1
SET
10nF
SET
2.2mF
Shutdown
AMP_EN
R#
SPK EN
CB
Rf(HP_R)
HP_EN
SET
HP EN
Pull-high HP_EN to enable
headohone driver
51kW
4.7nF
*40KW
Recommended for
de-pop
Ring
INR_H
HP_R
39KW
3.3mF
R_ch
for HP
Rf(HP_L)
Ri(HP_R)
Ci(HP_R)
Sleeve
Tip
Ci(HP_L)
Ri(HP_L)
*40KW
L_ch
INL_H
Headphone Jack
HP_L
for HP
3.3mF
39KW
VDD(5V)
CVDD
HVDD(3.3V)
CVDD
CP+
VDD(5V)
CCPB
1mF
HVDD
CCPF
1mF
Power
Management
Charge
Pump
PVDD
VDD
CP-
CGND
CS(PVDD)
CS(HVDD)
10mF
CS(VDD)
0.1mF
0.1mF
PGND
CVSS
GND
R#: For the gain setting of speaker driver that
you need, refer totheGainSettingTable’s
recommendedvoltage,andsettingthisvoltage
at SET pin’s voltage =5R#/(R#+10K).
HVSS
0.1mF
VSS
CCPO
1mF
Copyright ã ANPEC Electronics Corp.
20
www.anpec.com.tw
Rev. A.1 - Aug., 2007
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
