PCM1800 ANALOG-TO-DIGITAL CONVERTER Datasheet

PCM1800 Datasheet, PDF, Equivalent


Part Number

PCM1800

Description

SINGLE-ENDED ANALOG-INPUT 20-BIT STEREO ANALOG-TO-DIGITAL CONVERTER

Manufacture

etcTI

Total Page 27 Pages
Datasheet
Download PCM1800 Datasheet


PCM1800
PCM1800
www.ti.com ............................................................................................................................................... SBAS071B – OCTOBER 2000 – REVISED AUGUST 2008
SINGLE-ENDED ANALOG-INPUT 20-BIT STEREO ANALOG-TO-DIGITAL CONVERTER
FEATURES
1
23 Dual 20-Bit Monolithic ΔΣ ADC
Single-Ended Voltage Input
64× Oversampling Decimation Filter:
– Pass-Band Ripple: ±0.05 dB
– Stop-Band Attenuation: –65 dB
High Performance:
– THD+N: –88 dB (typical)
– SNR: 95 dB (typical)
– Dynamic Range: 95 dB (typical)
– Internal High-Pass Filter
PCM Audio Interface:
– Master/Slave Modes
– Four Data Formats
Sampling Rate: 4 kHz to 48 kHz
System Clock: 256 fS, 384 fS, or 512 fS
Single 5-V Power Supply
Small 24-Pin SSOP Package
APPLICATIONS
DVD Recorders
DVD Receivers
AV Amplifier Receivers
Electric Musical Instruments
DESCRIPTION
The PCM1800 is a low-cost, single-chip stereo
analog-to-digital converter (ADC) with single-ended
analog voltage inputs. The PCM1800 uses a
delta-sigma modulator with 64 times oversampling,
including a digital decimation filter and a serial
interface which supports both master and slave
modes and four data formats. The PCM1800 is
suitable for a wide variety of cost-sensitive consumer
applications where good performance is required.
The PCM1800 is fabricated using a highly advanced
CMOS process and is available in a small 24-pin
SSOP package.
Analog Input (L)
Analog Input (R)
Analog Front-End
Delta-Sigma
Modulator
Digital
Decimation
Filter
Serial Interface
and
Format Control
Digital Output
Mode/Format Control
System Clock
B0003-01
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
System Two, Audio Precision are trademarks of Audio Precision, Inc.
2
All other trademarks are the property of their respective owners.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2000–2008, Texas Instruments Incorporated

PCM1800
PCM1800
SBAS071B – OCTOBER 2000 – REVISED AUGUST 2008 ............................................................................................................................................... www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ELECTRICAL CHARACTERISTICS
All specifications at TA = 25°C, VDD = VCC = 5 V, slave mode, fS = 44.1 kHz, 20-bit input data, and SYSCLK = 384 fS, unless
otherwise noted
PARAMETER
TEST CONDITIONS
RESOLUTION
DIGITAL INPUT/OUTPUT
VIH (1)
VIL (1)
IIN (2)
IIN (3)
VOH (4)
VOL (4)
Input logic level
Input logic current
Output logic level
fS Sampling frequency
System clock frequency
DC ACCURACY
Gain mismatch, channel-to-channel
Gain error
Gain drift
Bipolar zero error
Bipolar zero drift
DYNAMIC PERFORMANCE(5)
THD+N at FS (–0.5 dB)
THD+N at –60 dB
Dynamic range
Signal-to-noise ratio
Channel separation
DYNAMIC PERFORMANCE(5)
Dynamic range
Signal-to-noise ratio
Channel separation
ANALOG INPUT
Input range
Center voltage
Input impedance
Antialiasing filter frequency response
DIGITAL FILTER PERFORMANCE
IOH = –1.6 mA
IOL = 3.2 mA
256 fS
384 fS
512 fS
High-pass filter bypassed
High-pass filter bypassed
A-weighted
A-weighted
16-bit, A-weighted
16-bit, A-weighted
16-bit
FS (VIN = 0 dB)
CEXT = 470 pF, –3 dB
PCM1800E
MIN TYP MAX
20
2
4.5
4
1.024
1.536
2.048
44.1
11.2896
16.9344
22.5792
0.8
±1
100
0.5
48
12.288
18.432
24.576
±1 ±2.5
±2 ±5
±20
±2
±20
–88 –80
–92
90 95
90 95
88 93
94
94
92
2.828
2.1
30
170
UNITS
Bits
VDC
µA
VDC
kHz
MHz
% of FSR
% of FSR
ppm of FSR/°C
% of FSR
ppm of FSR/°C
dB
dB
dB
dB
dB
dB
dB
dB
Vp-p
VDC
k
kHz
(1) Pins 6, 7, 8, 9, 10, 11, 16 and 12, 13, 14: RSTB, BYPAS, FMT0, FMT1, MODE0, MODE1, SYSCLK, and FSYNC, LRCK, BCK in slave
mode
(2) Pins 16 and 12, 13, 14: SYSCLK and FSYNC, LRCK, BCK in slave mode (Schmitt-trigger input)
(3) Pins 6, 7, 8, 9, 10, 11: RSTB, BYPAS, FMT0, FMT1, MODE0, MODE1 (Schmitt-trigger input, with 100-ktypical pulldown resistor)
(4) Pins 15 and 12, 13, 14: DOUT and FSYNC, LRCK, BCK in master mode
(5) fIN = 1 kHz, using the System Two™ audio measurement system by Audio Precision™, rms mode with 20-kHz LPF and 400-Hz HPF in
the performance calculation.
2 Submit Documentation Feedback
Product Folder Link(s): PCM1800
Copyright © 2000–2008, Texas Instruments Incorporated


Features PCM1800 www.ti.com .................... ....................................... ....................................... ....................................... ...... SBAS071B – OCTOBER 2000 – RE VISED AUGUST 2008 SINGLE-ENDED ANALOG-I NPUT 20-BIT STEREO ANALOG-TO-DIGITAL CO NVERTER FEATURES 1 •23 Dual 20-Bit M onolithic ΔΣ ADC • Single-Ended Vol tage Input • 64× Oversampling Decima tion Filter: – Pass-Band Ripple: ±0. 05 dB – Stop-Band Attenuation: –65 dB • High Performance: – THD+N: – 88 dB (typical) – SNR: 95 dB (typical ) – Dynamic Range: 95 dB (typical) Internal High-Pass Filter • PCM Aud io Interface: – Master/Slave Modes Four Data Formats • Sampling Rate: 4 kHz to 48 kHz • System Clock: 256 f S, 384 fS, or 512 fS • Single 5-V Pow er Supply • Small 24-Pin SSOP Package APPLICATIONS • DVD Recorders • DV D Receivers • AV Amplifier Receivers • Electric Musical Instruments DESCRI PTION The PCM1800 is a low-cost, single-chip stereo analog-to-digital converter (ADC) with single-ended analog voltag.
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