PCM3793A
PCM3794A
www.ti.com
SLAS529A–JANUARY 2007–REVISED FEBRUARY 2007
Table 1. TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
AGND
AIN1L
AIN1R
AIN2L
AIN2R
AIN3L
AIN3R
BCK
PCM3793ARHB
PCM3794ARHB
19
27
26
25
24
23
22
1
19
27
26
25
24
23
22
1
–
I
Ground for analog
Analog input 1 for L-channel
Analog input 1 for R-channel
Analog input 2 for L-channel
Analog input 2 for R-channel
Analog input 3 for L-channel
Analog input 3 for R-channel
I
I
I
I
I
I/O Serial bit clock
DGND
DIN
6
6
–
I
Digital ground
2
2
Serial audio data input
DOUT
HDTI
3
3
O
I
Serial audio data output
8
8
Headphone plug insertion detection
Headphone common/mono line output
Headphone/lineout for R-channel
Headphone/lineout for L-channel
HPCOM/MONO
HPOL/LOL
HPOR/LOR
LRCK
9
9
O
O
O
17
16
32
31
30
21
28
29
13
7
17
16
32
31
30
21
28
29
13
7
I/O Left and right channel clock
Mode control clock for three-wire/two-wire interface
I/O Mode control data for three-wire/two-wire interface
MC/SCL
MD/SDA
MICB
I
O
I
Microphone bias source output
MODE
MS/ADR
PGND
SCKI
Two- or three-wire interface selection (LOW: SPI, HIGH: I2C)
Mode control select for three-wire/two-wire interface
Ground for speaker power amplifier
System clock
I
–
I
SPOLN
SPOLP
SPORN
SPORP
VCC
14
15
10
11
20
18
5
–
O
O
O
O
–
–
–
–
–
Speaker output L-channel for negative (PCM3793A)
Speaker output L-channel for positive (PCM3793A)
Speaker output R-channel for negative (PCM3793A)
Speaker output R-channel for positive (PCM3793A)
Analog power supply
–
–
–
20
18
5
VCOM
Analog common voltage
VDD
Power supply for digital core
VIO
4
4
Power supply for digital I/O
VPA
12
12
Power supply for power amplifier
8
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