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TFA9872CUK/N1Z
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
P31-P32
NXP Semiconductors
TFA9872_SDS
High Efficiency Class-D Audio Amplifier with Speaker-as-Microphone
TFA9872_SDS
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2017. All rights reserved.
Product short data sheet
Rev. 1 — 12 April 2017
COMPANY PUBLIC
4 / 32
5
Ordering information
Table 2. Ordering information
Package
Type number
Name
Description
Version
TFA9872AUK/N1
WLCSP42
wafer level chip-scale package; 42 bumps; 3.13 × 2.46 × 0.50 mm
SOT1459-2
TFA9872CUK/N1
WLCSP42
wafer level chip-scale package; 42 bumps; 3.13 × 2.46 × 0.525 mm
SOT1459-2
NXP Semiconductors
TFA9872_SDS
High Efficiency Class-D Audio Amplifier with Speaker-as-Microphone
TFA9872_SDS
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2017. All rights reserved.
Product short data sheet
Rev. 1 — 12 April 2017
COMPANY PUBLIC
5 / 32
6
Block diagram
aaa-021841
I
2
C
INTERFACE
PDM
INTERFACE
MANAGER
GAIN
GAIN
AND
SIGN
SIGN
PLL
FS
BCK
CGU
OSC1M
1ch INT
CARDEC
(2ch)
2x DEC
DEC
PGA
TEMP SENSE
Vbat SENSE
A
D
C
A
D
C
Vddp SENSE
low latency
speaker as mic
I
2
S/TDM
INPUT
INTERFACE
INTELLIGENT
DC-DC
CONVERTER
VBST
GNDB
VDDD
GNDP
VDDP
AUXSAMP
AUXSAMN
GNDD
I/V SENSE
PROCESSING
AND
DA
T
A
SELECTOR
I
2
S/TDM
OUTPUT
INTERFACE
INTERRUPT
HANDLER
SCL
SDA
RST
INT
DA
T
AI
BCK
FS
PDMDA
T
DA
T
AO
PDMCLK
MTP
REGISTERS
MAX ChL OR ChR
TEST1
TEST2
TRSTN
ADS1
ADS2
VBA
T
VDDE
INB
CLASS-D
SPK
AMP
HPF
GAIN
CLIPPER
PWM
+
FRACTIONAL
DELA
Y
ALIGN (I/V)
voltage
sensing
current sensing
speaker
as mic.
PROTECTIONS:
OTP
OVP
UVP
OCP
OUT
A
OUTB
Figure 1. Block diagram
NXP Semiconductors
TFA9872_SDS
High Efficiency Class-D Audio Amplifier with Speaker-as-Microphone
TFA9872_SDS
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2017. All rights reserved.
Product short data sheet
Rev. 1 — 12 April 2017
COMPANY PUBLIC
6 / 32
7
Pinning information
7.1
Pinning
1
2
3
G
F
4
5
6
C
B
A
aaa-021938
bump
A1
index area
E
D
1
2
3
E
F
4
5
6
aaa-021939
bump A1
index area
G
A
B
C
D
Bottom view
Transparent top view
Figure 2. Bump configuration
A
2
3
4
5
6
1
GNDD
OUTB
VDDP
DA
T
AO
DA
T
AI
FS
GNDP
GNDP
VDDP
RST
INT
BCK
GNDD
OUT
A
VDDP
TRSTN
PDMDA
T
PDMCLK
GNDD
OUT
A
VBST
TEST2
AUXSAMP
SCL
GNDB
INB
VBST
TEST1
AUXSAMN
SDA
GNDB
INB
VBST
GNDD
ADS1
VDDD
GNDB
INB
VBST
VBA
T
ADS2
VDDE
aaa-021936
B
C
D
E
F
G
Figure 3. Bump mapping
Transparent top view
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
P31-P32
TFA9872CUK/N1Z
Mfr. #:
Buy TFA9872CUK/N1Z
Manufacturer:
NXP Semiconductors
Description:
Audio Amplifiers TFA9872CUK/WLCSP42//N1/REEL 7 Q1 DP CIRCUIT ELEME
Lifecycle:
New from this manufacturer.
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Products related to this Datasheet
TFA9872CUK/N1Z
TFA9872AUK/N1Z