®
PCM
49%
171
FPO
9E
PCM1719
Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
TM
FEATURES
q
ACCEPTS 16- OR 18-BIT INPUT DATA
q
COMPLETE STEREO DAC:
8X Oversampling Digital Filter
Multi-Level Delta-Sigma DAC
Analog Low Pass Filter
q
ON-CHIP HEADPHONE AMPLIFIER
q
HIGH PERFORMANCE:
–88dB THD+N
96dB Dynamic Range
100dB SNR
q
SELECTABLE FUNCTIONS:
Digital De-emphasis
Digital Attenuation (256 Steps)
Soft Mute
Multiple Output Formats
q
SYSTEM CLOCK: 256f
S
or 384f
S
q
SINGLE +5V POWER SUPPLY
q
SMALL 28-PIN SSOP PACKAGE
DESCRIPTION
PCM1719 is a complete, low cost stereo audio digital-
to-analog converter (DAC) including a digital interpo-
lation filter, 3rd-order delta-sigma DAC, an analog
low-pass filter and output amplifier. PCM1719 also
has an on-chip stereo headphone amplifier.
PCM1719 can accept either 16-, or 18-bit input data.
The audio data input format can be either MSB-first,
right-justified or I
2
S. The system clock can be 256f
S
or
384f
S
. PCM1719 is fabricated on a highly advanced
0.6µs CMOS process, which delivers high perfor-
mance at very low power dissipation.
PCM1719 is ideal for applications which require head-
phone drivers such as CD-ROM drives, digital audio
workstations, portable CD players, and digital musical
instruments.
BCKIN
LRCIN
DIN
Serial
Input
I/F
Multi-level
Delta-Sigma
Modulator
8X Oversampling
Digital Filter
with Multi-Function
Control
DAC
Low-pass
Filter
V
OUT
L
COM
Multi-level
Delta-Sigma
Modulator
Low-pass
Filter
V
OUT
R
ML
MC
MD
RSTB
XTI
Mode
Control
I/F
Reset
DAC
ZERO
BPZ-Cont.
Open Drain
P
IN
L
XTO
CLKO
Clock
and
OSC
Manager
PCM1719
Headphone Amp
Bias
Mute
P
OUT
L
PCOM
PMUTE
P
OUT
R
P
IN
LR
Power Supply
Headphone Amp
V
CC
AGND V
DD
DGND PGND PV
CC
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1996 Burr-Brown Corporation
PDS-1343A
Printed in U.S.A., November, 1996
BURR-BROWN [ BURR-BROWN CORPORATION ]
