Advertisement
PCM1791A
SLES071A − MARCH 2003 − REVISED JANUARY 2004
Terminal Function
TERMINAL
NAME
PIN
AGNDC
16
AGNDF
9
AGNDL
19
AGNDR
11
BCK
2
DATA
3
DGND
8
LRCK
1
MC
27
MDI
26
MDO
25
MS
28
MSEL
24
MUTE
4
RST
6
SCK
5
V CC C
15
V CC F
21
V CC L
20
V CC R
10
V COM
14
V DD
7
V OUT L+
17
V OUT L–
18
V OUT R+
13
V OUT R–
12
ZEROL
23
ZEROR
22
(1) Schmitt-trigger input, 5-V tolerant
(2) Schmitt-trigger input and output. 5-V tolerant input. In I 2 C mode, this pin becomes an open-drain 3-state output; otherwise, this pin is a CMOS
output.
(3) 3-state output
(4) Schmitt-trigger input and output. 5-V tolerant input and CMOS output
6
Terminal Functions
I/O
I/O
−
Analog ground (internal bias and current DAC)
−
Analog ground (DACFF)
−
Analog ground (L-channel I/V)
−
Analog ground (R-channel I/V)
Bit clock input (1)
I
Serial audio data input (1)
I
−
Digital ground
Left and right clock (f S ) input (1)
I
Mode control clock input (1)
I
Mode control data input (2)
I/O
Mode control readback data output (3)
O
Mode control chip select input (4)
I/O
I 2 C/SPI select (1)
I
Analog output mute control (1)
I
Reset (1)
I
System clock input (1)
I
−
Analog power supply (internal bias and current DAC), 5 V
−
Analog power supply (DACFF), 5 V
−
Analog power supply (L-channel I/V), 5 V
−
Analog power supply (R-channel I/V), 5 V
−
Internal bias decoupling pin
−
Digital power supply, 3.3 V
O
L-channel analog voltage output +
O
L-channel analog voltage output –
O
R-channel analog voltage output +
O
R-channel analog voltage output –
O
Zero flag for L-channel
O
Zero flag for R-channel
DESCRIPTIONS
DESCRIPTIONS
88
www.ti.com
Advertisement
