®
PCM
170
4
49%
FPO
PCM1704
24-Bit, 96kHz
BiCMOS Sign-Magnitude
DIGITAL-TO-ANALOG CONVERTER
TM
FEATURES
q
SAMPLING FREQUENCY (f
S
): 16kHz to 96kHz
q
8X OVERSAMPLING AT 96kHz
q
INPUT AUDIO DATA WORD: 20-, 24-Bit
q
HIGH PERFORMANCE:
Dynamic Range: K Grade = 112dB typ
SNR: 120dB typ
THD+N: K Grade = 0.0008% typ
q
FAST CURRENT OUTPUT:
±
1.2mA/200ns
q
GLITCH-FREE OUTPUT
q
PIN-PROGRAMMABLE DATA INVERSION
q
POWER SUPPLY:
±
5V
q
SMALL 20-LEAD SO PACKAGE
DESCRIPTION
The PCM1704 is a precision, 24-bit digital-to-analog
converter with exceptionally high dynamic perfor-
mance. The ultra-low distortion and excellent low-
level signal performance makes the PCM1704 an ideal
candidate for high-end consumer and professional
audio applications. When used with a digital interpo-
lation filter, the PCM1704 supports 8X oversampling
at 96kHz.
The PCM1704 incorporates a BiCMOS sign-magni-
tude architecture that eliminates glitches and other
nonlinearities around bipolar zero. The PCM1704 is
precision laser-trimmed at the factory to minimize
differential linearity and gain errors.
In addition to high performance audio systems, the
PCM1704 is well-suited to waveform synthesis appli-
cations requiring very low distortion and noise.
BCLK
WCLK
DATA
20-BIT
INVERT
Serial Input
and
Control Logic
23-Bit DAC A
23-Bit DAC B
I
OUT
Bipolar Offset
Reference and Servo
Power Supply
REF DC SERVO DC
–V
DD
DGND +V
DD
–V
CC
AGND +V
CC
BPO DC
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
© 1998 Burr-Brown Corporation
PDS-1454C
Printed in U.S.A. February, 1999
BURR-BROWN [ BURR-BROWN CORPORATION ]
