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....................................................................................................................................................
(1) Right-Justified Data Format; L-Channel = HIGH, R-Channel = LOW
LRCK
BCK
(= 32 f
, 48 f
or 64 f
)
S
S,
S
16-Bit Right-Justified, BCK = 32 f
S
DATA
14 15 16
1
2
3
MSB
16-Bit Right-Justified, BCK = 48 f
or 64 f
S
DATA
14 15 16
24-Bit Right-Justified, BCK = 48 f
or 64 f
S
22 23 24
1
2
DATA
MSB
2
(2) I
S Data Format; L-Channel = LOW, R-Channel = HIGH
LRCK
BCK
(= 32 f
, 48 f
or 64 f
)
S
S
S
1
2
3
DATA
MSB
(3) Left-Justified Data Format; L-Channel = HIGH, R-Channel = LOW (default)
LRCK
BCK
(= 32 f
, 48 f
or 64 f
)
S
S,
S
DATA
1
2
3
MSB
16
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1/f
S
L-Channel
14 15 16
1
2
LSB
MSB
S
1
2
3
14 15 16
MSB
LSB
S
3
22 23 24
1
LSB
1/f
S
L-Channel
N
1
2
N–2
N–1
LSB
MSB
1/f
S
L-Channel
N
1
2
N–2
N–1
LSB
MSB
Figure 22. Audio Data Input Formats
Product Folder Link(s):
PCM1681 PCM1681-Q1
www.ti.com
R-Channel
3
14 15 16
LSB
1
2
3
14 15 16
MSB
LSB
2
3
22 23 24
MSB
LSB
R-Channel
3
N
1
N–2
N–1
LSB
R-Channel
3
N
1
2
N–2
N–1
LSB
Copyright © 2008, Texas Instruments Incorporated
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