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PDF PCM66P Data sheet ( Hoja de datos )
| Número de pieza | PCM66P | |
| Descripción | 16-Bit CMOS Monolithic Audio DIGITAL-TO-ANALOG CONVERTER | |
| Fabricantes | Burr-Brown | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PCM66P (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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®
FPO
FPO
PCM66P
16-Bit CMOS Monolithic Audio
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q LOW COST 16-BIT 2-CHANNEL CMOS
MONOLITHIC D/A CONVERTER
q SINGLE SUPPLY +5V OPERATION
q 50mW POWER DISSIPATION
q GLITCH-FREE VOLTAGE OUTPUTS
q LOW DISTORTION: –86dB max THD + N
q COMPLETE WITH REFERENCE
q SERIAL INPUT FORMAT
q SINGLE OR DUAL DAC MODE
OPERATION
q PLASTIC 20-PIN SOIC PACKAGE
DESCRIPTION
The PCM66P is a low cost, dual output 16-bit CMOS
digital-to-analog converter. The PCM66P features true
glitch-free voltage outputs, internal reference and re-
quires only a single +5V supply. Total power dissipa-
tion is less than 50mW max. Low maximum Total
Harmonic Distortion + Noise (–86dB max; PCM66P-
J) is 100% tested. Either one or two channel output
modes are fully user selectable.
The PCM66P comes in a space-saving 20-pin plastic
SOIC package. PCM66P accepts a serial data input
format and is compatible with other Burr-Brown PCM
products such as the industry standard PCM56P.
VCC (+5V)
SDM SEL
LRDAC
LRCLK
WDCLK
CLK
DATA
Control
Logic
Reference
16-Bit
VOUT DAC
Serial-to-Parallel
Shift Register
Integrate
& Hold Amp
Integrate
& Hold Amp
V REF
A COM
L CH Out
V OUT
R CH Out
D COM
International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: (602) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: (602) 889-1510 • Immediate Product Info: (800) 548-6132
©1990 Burr-Brown Corporation
PDS-1051D
Printed in U.S.A. October, 1993
1 page  
DATA
CLK
WDCLK
LRCLK
LRDAC
SDM SEL
Serial/Parallel
Shift Register
16-Bit Input
Data Latch
16-Bit D/A
Converter
10kΩ
0–3.5V
Reference
–
–
+
+
4kΩ 30kΩ
20kΩ
–
+
4kΩ 30kΩ
LCH
VOUT
VCOM
20kΩ
– R CH
+ V OUT
+V CC
V REF
SEN
V REF
FIGURE 2. PCM66P Block Diagram.
C REF +V CC
PCM66P
Mode Select
1 LRCLK Mode 2 20
Digital
Input
2 WDCLK
3 CLK
Mode 1 19
+VCC 18
4 DATA
+VCC 17
5 NC
+VCC 16
6 DCOM
VREF 15
7 A COM VREF SEN 14
L CH Out
R CH Out
8 L CH Out
330pF
9 V COM
330pF
10 R CH Out
CCOM
CREF 13
+VCC 12
+VCC 11
10µF
CREF 0.1µF
+ 100µF
3.3µF
FIGURE 3. PCM66P Connection Diagram.
+VCC
+5V
TWO DAC TWO-CHANNEL OPERATION
In phase, two-channel output can be obtained by using two
PCM66Ps and choosing the single DAC mode (setting SDM
SEL high). With the use of a high or low input level on
LRDAC (P left/right DAC select), each DAC can have its
right channel output dedicated to either left or right data
input with no additional input signals being required to latch
the appropriate data from an alternating L/R data word input
stream. In the single DAC mode, the PCM66P’s left channel
output is disabled and held at +VCOM. In this mode both
DACs share common inputs for DATA, CLK, WDCLK, and
LRCLK. Otherwise circuit connection is the same as the
two-channel DAC mode, with the exception of LRDAC
whose level selects whether the single DAC will output
dedicated left or right channel data.
INTEGRATE AND HOLD OUTPUT AMPLIFIERS
The PCM66P incorporates integrate and hold amplifiers on
each output channel. This allows a single, very fast DAC to
feed both amplifiers and reduce circuit complexity. It also
serves to block the output glitch from the DAC to the
individual channel outputs and effectively makes the PCM66P
outputs “glitch-free.” The PCM66P is a single +5V supply
device with a voltage output swing of 2.8Vp-p. The outputs
swing asymmetrically around VCOM (+VCC – 2.33V). See
Table II for exact input/output relationships. Since true
CMOS amplifiers are used on the PCM66P, the load resis-
tance on the outputs should not be less than 100kΩ and the
capacitive loads should not exceed 100pF. For maximum
low-distortion performance, output buffer amplifiers should
be considered.
®
5 PCM66P
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet PCM66P.PDF ] | |
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