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Burr-Brown Corporation

PCM1740 Datasheet Preview

PCM1740 Datasheet

Stereo Audio DIGITAL-TO-ANALOG CONVERTER with VCXO and PLL

No Preview Available !

®
PCM1740
PCM1740
For most current data sheet and other product
information, visit www.burr-brown.com
TM Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
with VCXO and PLL
FEATURES
DESCRIPTION
q COMPLETE DELTA-SIGMA STEREO DAC
The PCM1740 is a complete stereo audio digital-to-analog
q VOLTAGE-CONTROLLED CRYSTAL
OSCILLATOR: 27MHz ±150ppm Output with
0V to 3V Input
q PROGRAMMABLE PLL
256fS or 384fS Audio System Clock Output
q DYNAMIC PERFORMANCE:
Dynamic Range: 94dB
SNR: 94dB
THD+N: –89dB
q SAMPLING FREQUENCIES:
16kHz, 22.05kHz, 24kHz
converter with on-chip PLL and VCXO. The PCM1740 is
designed specifically for set-top box applications requiring
high-quality audio playback, a precision tuned 27MHz mas-
ter clock source, and support for multiple audio-sampling
frequencies.
The stereo D/A converter utilizes multi-bit, delta-sigma
architecture, which includes an 8x interpolation filter, third-
order noise shaping, 5-level amplitude quantization, and an
analog low-pass filter. The PCM1740 includes a number of
user-programmable functions, which are accessed via a
standard I2C-Bus interface.
32kHz, 44.1kHz, 48kHz
64kHz, 88.2kHz, 96kHz
APPLICATIONS
q SERIAL AUDIO INTERFACE:
q SET-TOP BOXES
Standard or I2S Data Formats
q DIGITAL BROADCAST RECEIVERS
16-, 20-, or 24-Bit Data
q I2C-BUS® INTERFACE FOR CONTROL
REGISTERS(1):
Slave Receiver Operation
7-Bit Addressing
Standard Transfer Rate (up to 100kbps)
q PROGRAMMABLE CONTROLS:
Digital Attenuation (256 steps)
Soft Mute
Infinite Zero Detect Mute
De-Emphasis (32kHz, 44.1kHz, 48kHz)
DAC Output Mode
q SINGLE +5V SUPPLY
q SMALL SSOP-24 PACKAGE
BCK
LRCK
DATA
SCL
SDA
AD1
AD0
XTUN
27MHz
Crystal
XT1
XT2
RST
PCM
Audio
I/F
I2C
I/F
and
REGs
VCXO
8x
Oversampling
Digital Filter
and
Sub-Functions
Process
DAC
(L)
DAC
(R)
Low-Pass
Filter
and Amp
Counter N
Counter M
Phase
Detector
LPF
VCO
Reset
Power Supply
VOUTL
VCOM
VOUTR
ZERO
SCKO
(256fS/ 384fS)
MCKO
(27MHz)
VPP PGND VCC AGND VDD DGND
NOTE: (1) I2C-Bus® is a registered trademark of Philips Semiconductor.
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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 2000 Burr-Brown Corporation
PDS-11551A
PPrCinteMd in1U7.S4.A0. February, 2000
®




Burr-Brown Corporation

PCM1740 Datasheet Preview

PCM1740 Datasheet

Stereo Audio DIGITAL-TO-ANALOG CONVERTER with VCXO and PLL

No Preview Available !

SPECIFICATIONS
All specifications at TA = +25°C, VCC = VDD = VPP = 5.0V, fS = 44.1kHz, system clock = 384fS, 16-bit data, unless otherwise noted.
PARAMETER
CONDITIONS
RESOLUTION
DATA FORMAT
Audio Interface Format
Audio Data Bit Length
Audio Data Format
Sampling Frequency (fS)
Internal System Clock Frequency
Standard (fS)
Half (fS)
Double (fS)
DIGITAL INPUT/OUTPUT
Logic Family
High Level Input Voltage: VIH(1), (2)
Low Level Input Voltage: VIL(1), (2)
High Level Input Current: IIH(1), (2)
Low Level Input Current:
IIL(1)
IIL(2)
High Level Output Voltage: VOH(3)
Low Level Output Voltage:
VOH(3)
VOL(4)
DIGITAL INPUT/OUTPUT of I2C-BUS INTERFACE
High Level Input Voltage: VIH(5)
Low Level Input Voltage: VIL(5)
Low Level Output Voltage: VOL(6)
Output Fall Time: tOF (7)
Input Logic Current: II(8)
Capacitance for each I/O pin: CI(5)
VCXO CHARACTERISTICS (MCKO)
Crystal Clock Frequency (9)
Crystal Clock Accuracy(9)
XTUN Tuning Voltage Range(10)
XTUN Input Impedance(10)
Output Clock Frequency
Output Clock Accuracy
VCXO Tuning Range
Output Clock Duty Cycle
Output Clock Jitter
Output Rise Time
Output Fall Time
Response Time(11)
Power Up Time(12)
Input Logic
VIH = VDD
VIL = 0V
VIL = 0V
IOH = –2mA
IOL = 4mA
IOL = 2mA
10% to 90% of VDD
27MHz, Fundamental Crystal
XTUN = 1.3V
XTUN = 1.3V
XTUN = 0V – 3V
10pF Load
Standard Deviation
20% to 80% VDD, 10pF Load
80% to 20% VDD, 10pF Load
PLL AC CHARACTERISTICS (SCKO)
Output Clock Frequency
Output Clock Duty Cycle
Output Clock Jitter
Output Rise Time
Output Fall Time
Frequency Transition Time(13)
Power Up Time(14)
DYNAMIC PERFORMANCE(15)
MCKO = 27.0MHz
10pF Load
Standard Deviation
20% to 80% VDD, 10pF Load
80% to 20% VDD, 10pF Load
THD+N:
VOUT = 0dB
VOUT = –60dB
Dynamic Range
Signal-to-Noise Ratio(16)
Channel Separation
Level Linearity Error
fS = 44.1kHz
fS = 96kHz
fS = 44.1kHz
fS = 96kHz
fS = 44.1kHz, EIAJ, A-Weighted
fS = 96kHz, A-Weighted
fS = 44.1kHz, EIAJ, A-weighted
fS = 96kHz, A-weighted
fS = 44.1kHz
fS = 96kHz
VOUT = –90dB
PCM1740E
MIN
TYP
MAX
16
Standard/I2S Selectable
16/20/24 Selectable
MSB First, Two’s Binary Complement
32 44.1 48
16 22.05 24
64 88.2 96
256fS /384fS
TTL Compatible
2.0
0.8
±10
VDD – 0.5V
±10
–120
0.5
0.5
3.0
–0.3
0
–10
1.5
0.4
250
10
10
27.0000
±30
0 3.0
60
27.0000
±50
300
35 45 55
100
4
4
10
5
4.096
40
36.864
50 60
150
4
4
20
15 30
0.0035
0.01
0.007
0.0035
0.01
0.007
90 94
90
90 94
90
88 92
88
±1.0
UNITS
Bits
Bits
kHz
kHz
kHz
VDC
VDC
µA
µA
µA
VDC
VDC
VDC
V
V
V
ns
µA
pF
MHz
ppm
V
k
MHz
ppm
ppm
%
ps
ns
ns
µs
ms
MHz
%
ps
ns
ns
ms
ms
%
%
%
%
dB
dB
dB
dB
dB
dB
dB
®
PCM1740
2


Part Number PCM1740
Description Stereo Audio DIGITAL-TO-ANALOG CONVERTER with VCXO and PLL
Maker Burr-Brown Corporation
Total Page 20 Pages
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