Datasheet

PCM1690
www.ti.com .............................................................................................................................................. SBAS448A – OCTOBER 2008 – REVISED JANUARY 2009
TERMINAL FUNCTIONS (continued)
TERMINAL
PULL- 5-V
NAME PIN I/O DOWN TOLERANT DESCRIPTION
VDD 12 — — — Digital power supply, +3.3 V
DGND 13 — — — Digital ground
SCKI 14 I No Yes System clock input
RST 15 I Yes Yes Reset and power-down control input with active low
ZERO1 16 O No No Zero detect flag output 1
ZERO2 17 O No No Zero detect flag output 2
AMUTEI 18 I No Yes Analog mute control input with active low
AMUTEO 19 O No Yes Analog mute status output
(1)
with active low
Input data for SPI, data for I
2
C
(1)
, de-emphasis control for hardware
MD/SDA/DEMP 20 I/O No Yes
control mode
MC/SCL/FMT 21 I No Yes Clock for SPI, clock for I
2
C, format select for hardware control mode
Chip Select for SPI, address select 0 for I
2
C, reserve (set low) for
MS/ADR0/RSV 22 I Yes Yes
hardware control mode
Test (factory use, left open) for SPI, address select 1 for I
2
C,
TEST/ADR1/RSV 23 I/O No Yes
reserve (set low) for hardware control mode
Control port mode selection. Tied to VDD: SPI, left open: H/W
MODE 24 I No No
mode, tied to DGND: I
2
C
VCC1 25 — — — Analog power supply 1, +5 V
VCOM 26 — — — Voltage common decoupling
AGND1 27 — — — Analog ground 1
RSV2 28 — — — Reserved, tied to analog ground
VOUT8+ 29 O No No Positive analog output from DAC8
VOUT8- 30 O No No Negative analog output from DAC8
VOUT7+ 31 O No No Positive analog output from DAC7
VOUT7- 32 O No No Negative analog output from DAC7
VOUT6+ 33 O No No Positive analog output from DAC6
VOUT6- 34 O No No Negative analog output from DAC6
VOUT5+ 35 O No No Positive analog output from DAC5
VOUT5- 36 O No No Negative analog output from DAC5
VOUT4+ 37 O No No Positive analog output from DAC4
VOUT4- 38 O No No Negative analog output from DAC4
VOUT3+ 39 O No No Positive analog output from DAC3
VOUT3- 40 O No No Negative analog output from DAC3
VOUT2+ 41 O No No Positive analog output from DAC2
VOUT2- 42 O No No Negative analog output from DAC2
VOUT1+ 43 O No No Positive analog output from DAC1
VOUT1- 44 O No No Negative analog output from DAC1
RSV2 45 — — — Reserved, tied to analog ground
AGND2 46 — — — Analog ground 2
VCC2 47 — — — Analog power supply 2, +5 V
RSV2 48 — — — Reserved, tied to analog ground
(1) Open-drain configuration in out mode.
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