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TCM29C19N Datasheet

  • TCM29C19N

  • ANALOG INTERFACE FOR DSP

  • 17頁

  • TI

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TCM29C18, TCM29C19, TCM129C18, TCM129C19
ANALOG INTERFACE FOR DSP
SCTS021D 鈥揂UGUST 1987 鈥揜EVISED OCTOBER 1996
D
D
D
D
D
D
D
Reliable Silicon-Gate CMOS Technology
Low Power Consumption
鈥?Operating Mode . . . 80 mW
鈥?Power-Down Mode . . . 5 mW
碌-Law
Coding
Excellent Power-Supply Rejection Ratio
Over Frequency Range of 0 Hz to 50 kHz
No External Components Needed for
Sample, Hold, and Autozero Functions
Precision Internal Voltage Reference
Single Chip Contains A/D, D/A, and
Associated Filters
DW OR N PACKAGE
(TOP VIEW)
VBB
PWRO +
PWRO 鈥?/div>
PDN
DCLKR
PCM IN
FSR/TSRE
DGTL GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VCC
GSX
ANLG IN
ANLG GND
TSX/DCLKX
PCM OUT
FSX/TSXE
CLK
FEATURES TABLE
Number of Pins:
16
Coding Law:
碌-Law
Variable Mode:
64 kHz to 2.048 MHz
Fixed Mode:
2.048 MHz (TCM29C18, TCM129C18),
1.536 MHz (TCM29C19, TCM129C19)
8-Bit Resolution
12-Bit Dynamic Range
description
The TCM29C18, TCM29C19, TCM129C18, and
TCM129C19 are low-cost single-chip PCM
codecs (pulse-code-modulated encoders and
decoders) and PCM line filters. These devices
incorporate both the A/D and D/A functions, an
antialiasing filter (A/D), and a smoothing filter
(D/A). They are ideal for use with the TMS320
DSP family members, particularly those featuring
a serial port such as the TMS32020, TMS32011,
and TMS320C25.
Primary applications include:
鈥?/div>
鈥?/div>
鈥?/div>
Digital encryption systems
Digital voice-band data storage systems
Digital signal processing
These devices are designed to perform encoding of analog input signals (A/D conversion) and decoding of
digital PCM signals (D/A conversion). They are useful for implementation in the analog interface of a digital
signal processing system. Both devices also provide band-pass filtering of the analog signals prior to encoding,
and smoothing after decoding.
The TCM29C18 and TCM29C19 are characterized for operation over the temperature range of 0擄C to 70擄C.
The TCM129C18 and TCM129C19 are characterized for operation over the temperature range of
鈥?40擄C to 85擄C.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
漏
1996, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

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