The PCM1681 and PCM1681-Q1 are CMOS monolithic integrated circuits which feature an eight-channel 24-bit audio digital-to-analog converter (DAC) and support circuitry in small 28-lead TSSOP PowerPAD packages

PCM1681

Manufacturer Part NumberPCM1681
DescriptionThe PCM1681 and PCM1681-Q1 are CMOS monolithic integrated circuits which feature an eight-channel 24-bit audio digital-to-analog converter (DAC) and support circuitry in small 28-lead TSSOP PowerPAD packages
ManufacturerTexas Instruments
PCM1681 datasheet
 


Specifications of PCM1681

# Dacs8# Inputs / # Outputs0 / 8
ArchitectureCurrent Segment DACResolution(bits)24
Sampling Rate(max)(khz)200Control InterfaceSPI, I2C,H/W
Digital Audio InterfaceL,R,I2S,TDM,DSPThd+n(typ)(%)0.002
Dac Snr(typ)(db)105Power Consumption(typ)(mw)386
Operating Temperature Range(c)-40 to 85Analog Voltage Av/dd(min)(v)4.5
Analog Voltage Av/dd(max)(v)5.5Pin/package28HTSSOP
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PCM1681
PCM1681-Q1
SLES211B – FEBRUARY 2008 – REVISED JUNE
2008....................................................................................................................................................
TERMINAL
I/O
NAME
NO.
AGND1
18
Analog ground
AGND2
24
Analog ground
BCK
7
I
Shift clock input for serial audio data
DATA1
6
I
Serial audio data input for V
DATA2
11
I
Serial audio data input for V
DATA3
12
I
Serial audio data input for V
DATA4
13
I
Serial audio data input for V
DGND
10
Digital ground
LRCK
8
I
Left and right clock input. The frequency of this clock is equal to the sampling rate, f
MC/SCL/
3
I
Shift clock input for SPI, serial clock input for I
DEMP
MD/SDA/
4
I/O
Serial data input for SPI, serial data input/output for I
MUTE
MS/ADR/
2
I
Select input for SPI, address input for I
FMT1
MSEL
14
I
Mode control select, I
SCK
5
I
System clock input. Input frequency is 128, 192, 256, 384, 512, 768, or 1152 f
V
1
17
Analog power supply, 5-V
CC
V
2
23
Analog power supply, 5-V
CC
V
25
Common voltage output. This pin should be bypassed with a 10- F capacitor to AGND.
COM
V
9
Digital power supply, 3.3-V
DD
V
1
27
O
Voltage output for audio signal corresponding to L-ch on DATA1
OUT
V
2
26
O
Voltage output for audio signal corresponding to R-ch on DATA1
OUT
V
3
22
O
Voltage output for audio signal corresponding to L-ch on DATA2
OUT
V
4
21
O
Voltage output for audio signal corresponding to R-ch on DATA2
OUT
V
5
20
O
Voltage output for audio signal corresponding to L-ch on DATA3
OUT
V
6
19
O
Voltage output for audio signal corresponding to R-ch on DATA3
OUT
V
7
16
O
Voltage output for audio signal corresponding to L-ch on DATA4
OUT
V
8
15
O
Voltage output for audio signal corresponding to R-ch on DATA4
OUT
ZR1/ZR1
1
I/O
Zero-flag output 1 for SPI, zero-flag output 1 for I
/FMT0
ZR2
28
O
Zero-flag output 2
(1) Schmitt-trigger input.
(2) 5-V tolerant.
2
(3) Open-drain output in I
C mode.
(4) V
/2 biased, quad state input.
DD
6
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TERMINAL FUNCTIONS
DESCRIPTION
(1) (2)
(1) (2)
1 and V
2
OUT
OUT
(1) (2)
3 and V
4
OUT
OUT
(1) (2)
5 and V
6
OUT
OUT
(1) (2)
7 and V
8
OUT
OUT
2
C, de-emphasis control for H/W
2
C, mute control for H/W
2
C, format control input 1 for H/W
2
C, H/W with narrow mode O/S, H/W with wide mode O/S, SPI select
2
C, format control input 0 for H/W
Product Folder Link(s):
PCM1681 PCM1681-Q1
www.ti.com
(1) (2)
.
S
(1) (2)
(1) (2) (3)
(1) (2)
(1) (4)
(1) (2)
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S
(1)
Copyright © 2008, Texas Instruments Incorporated