Advertisement
TERMINAL
I/O
I/O
NAME
PIN
AGND1
19
−
AGND2
24
−
AGND3L
27
−
AGND3R
16
−
BCK
6
I
DATA
5
I
DGND
8
−
I OUT L+
25
O
I OUT L–
26
O
I OUT R+
17
O
I OUT R–
18
O
I REF
20
−
LRCK
4
I
MC
12
I
MDI
11
I
MDO
13
I/O
MS
10
I/O
MSEL
3
I
RST
14
I
SCK
7
I
V CC 1
23
−
V CC 2L
28
−
V CC 2R
15
−
V COM L
22
−
V COM R
21
−
V DD
9
−
ZEROL
1
I/O
ZEROR
2
I/O
(1) Schmitt-trigger input, 5-V tolerant
(2) Schmitt-trigger input and output. 5-V tolerant input and CMOS output
(3) 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.
Terminal Functions (IC21: PCM1796)
Analog ground (internal bias)
Analog ground (internal bias)
Analog ground (L-channel DACFF)
Analog ground (R-channel DACFF)
Bit clock input (1)
Serial audio data input (1)
Digital ground
L-channel analog current output+
L-channel analog current output–
R-channel analog current output+
R-channel analog current output–
Output current reference bias pin
Left and right clock (f S ) input (1)
Mode control clock input (1)
Mode control data input (1)
Mode control readback data output (3)
Mode control chip-select input (2)
I 2 C/SPI select (1)
Reset (1)
System clock input (1)
Analog power supply, 5 V
Analog power supply (L-channel DACFF), 5 V
Analog power supply (R-channel DACFF), 5 V
L-channel internal bias decoupling pin
R-channel internal bias decoupling pin
Digital power supply, 3.3 V
Zero flag for L-channel (2)
Zero flag for R-channel (2)
Page 15 of 28
DESCRIPTIONS
DESCRIPTIONS
Advertisement
