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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BCK
LRCK
Serial
Input
DATA1 (1, 2)
I/F
DATA2 (3, 4)
DATA3 (5, 6)
DATA4 (7, 8)
MS/ADR/FMT1
MC/SCL/DEMP
MD/SDA/MUTE
Function
Control
I/F
MSEL
System Clock
System Clock
SCK
Manager
Copyright © 2008, Texas Instruments Incorporated
FUNCTIONAL BLOCK DIAGRAM
DAC
DAC
DAC
8y
DAC
Oversampling
Enhanced
Digital Filter
Multilevel
With
Delta-Sigma
Function
Modulator
DAC
Controller
DAC
DAC
DAC
Zero Detect
Product Folder Link(s):
PCM1681 PCM1681-Q1
PCM1681
PCM1681-Q1
SLES211B – FEBRUARY 2008 – REVISED JUNE 2008
V
Output Amp and
OUT
Low-Pass Filter
Output Amp and
V
OUT
Low-Pass Filter
V
Output Amp and
OUT
Low-Pass Filter
V
Output Amp and
COM
Low-Pass Filter
V
OUT
Output Amp and
Low-Pass Filter
V
OUT
Output Amp and
Low-Pass Filter
V
OUT
Output Amp and
Low-Pass Filter
V
OUT
Output Amp and
Low-Pass Filter
V
OUT
Power Supply
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