Datasheet

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PIN ASSIGNMENTS
HPOR/LOR
16
17
18
19
20
10
9
8
7
6
1 2 3 4 5
15 14 13 12 11
HPOL/LOL V
PA
PGND LRCK
MODE
MS/ADR MD/SDA
DIN
MC/SCL
V
COM
AGND
V
CC
AIN1R
AIN1L
BCK
SCKI
DGND
V
DD
V
IO
PCM1774RGP
(TOP VIEW)
PCM1774
SLAS551 – JULY 2007
Table 1. TERMINAL FUNCTIONS
TERMINAL
I/O DESCRIPTION
NAME NO.
AGND 17 – Ground for analog
AIN1L 20 I Analog input 1 for L-channel
AIN1R 19 I Analog input 1 for R-channel
BCK 10 I/O Serial bit clock
DGND 8 – Digital ground
DIN 5 I Serial audio data input
HPOL/LOL 15 O Headphone/lineout for R-channel
HPOR/LOR 14 O Headphone/lineout for L-channel
LRCK 11 I/O Left and right channel clock
MC/SCL 4 I Mode control clock for three-wire/two-wire interface
MD/SDA 3 I/O Mode control data for three-wire/two-wire interface
MODE 1 I Two- or three-wire interface selection (LOW: SPI, HIGH: I
2
C)
MS/ADR 2 I Mode control select for three-wire/two-wire interface
PGND 12 – Ground for speaker power amplifier
SCKI 9 I System clock
V
CC
18 – Analog power supply
V
COM
16 – Analog common voltage
V
DD
7 – Power supply for digital core
V
IO
6 – Power supply for digital I/O
V
PA
13 – Power supply for power amplifier
5
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