Datasheet

TPS65950
www.ti.com SWCS032E–OCTOBER 2008–REVISED JANUARY 2011
Table 15-1. TPS65950 External Components (continued)
Function Component Reference Value Note Link
MCPC
Capacitor C
TXAF
0.1 μF
Capacitor C
RXAF
1 μF
Resistor R
RTSO
22 Ω/100 Ω
Diode D
CTSI1
NNCD5.6J Figure 7-2
Diode D
CTSI2
NNCD5.6J
Diode D
RTSO1
NNCD5.6J
Diode D
RTSO2
NNCD5.6J
32.768 kHz
Capacitor C
XIN
10 pF Range: 9 to 12.5 pF
Capacitor C
XOUT
10 pF
Figure 12-5
±30 ppm (at 25°C)
Quartz X
32.768kHz
32.768 kHz
±200 ppm (–40°C to 85°C)
Audio
Earpiece Capacitor C
EAR
100 pF Figure 6-3
Ferrite bead L
HFR.M
NEC: N2012ZPS121
Ferrite bead L
HFR.P
NEC: N2012ZPS121
8-Ω hands-free right Capacitor C
HFR
1 μF Figure 6-5
Capacitor C
HFR.M
1 nF
Capacitor C
HFR.P
1 nF
Ferrite bead L
HFL.M
NEC: N2012ZPS121
Ferrite bead L
HFL.P
NEC: N2012ZPS121
8-Ω hands-free left Capacitor C
HFL
1 μF Figure 6-5
Capacitor C
HFL.M
1 nF
Capacitor C
HFL.P
1 nF
Capacitor C
S
22 μF/47 μF
Figure 6-7
Headset left Resistor R
S
0 to 33 Ω through
Figure 6-10
Capacitor C
I
47 pF
Capacitor C
S
22 μF/47 μF
Figure 6-7
Headset right Resistor R
S
0 to 33 Ω through
Figure 6-10
Capacitor C
I
47 pF
Capacitor C
HM.M
100 nF
Capacitor C
HM.P
100 nF
Figure 6-7
Capacitor C
HM.O
47 pF
Headset microphone through
Resistor R
B
+ R
SB
2.2 kΩ/2.7 kΩ
Figure 6-10
If greater than 200 pF, a serial
Capacitor C
B
0 to 200 pF
resistor is required for bias stability.
Capacitor C
PL.O
50 pF
Capacitor C
PL
1 μF
Resistor R
PL
>15 kΩ
External class-D predriver
Figure 6-12
left
Resistor R
PL.M
>15 kΩ
Resistor R
PL.O
10 kΩ
Capacitor C
PL.M
1 μF
Copyright © 2008–2011, Texas Instruments Incorporated External Components 157
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