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TDA8705

NXP
Part Number TDA8705
Manufacturer NXP
Description 6-bit high-speed dual Analog-to-Digital Converter ADC
Published Apr 16, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET TDA8705 6-bit high-speed dual Analog-to-Digital Converter (ADC) Product specification Su...
Datasheet PDF File TDA8705 PDF File

TDA8705
TDA8705

Overview
INTEGRATED CIRCUITS DATA SHEET TDA8705 6-bit high-speed dual Analog-to-Digital Converter (ADC) Product specification Supersedes data of November 1994 File under Integrated Circuits, IC02 1996 Jan 12 Philips Semiconductors Product specification 6-bit high-speed dual Analog-to-Digital Converter (ADC) FEATURES • 2 times 6-bit resolution • Sampling rate up to 40 MHz • High signal-to-noise ratio over a large analog input frequency range (5.
8 effective bits at 10 MHz full-scale input at fclk = 40 MHz • TTL output • Two separated inputs (AC-coupling) • TTL compatible digital inputs • Low-level AC clock input signal allowed • Internal reference voltage regulator (external reference regulation possible) • Power dissipation only 250 mW (typical) • Low analog input capacitance, no buffer amplifier required • No sample-and-hold circuit required.
QUICK REFERENCE DATA SYMBOL VCCA VCCD VCCO ICCA ICCD ICCO ILE DLE AILE fclk(max) Ptot Note 1.
Full-scale sine wave (fi = 10 MHz; fclk = 40 MHz).
ORDERING INFORMATION TYPE NUMBER TDA8705T PACKAGE NAME SO28 DESCRIPTION plastic small outline package; 28 leads; body width 7.
5 mm PARAMETER analog supply voltage digital supply voltage output stages supply voltage analog supply current digital supply current output stages supply current DC integral linear error DC differential linearity error AC integral linearity error maximum clock frequency total power dissipation note 1 CONDITIONS MIN.
4.
75 4.
75 4.
75 20 10 10 − − − 40 − TYP.
5.
0 5.
0 5.
0 27 14 14 ±0.
25 ±0.
25 ±0.
5 − 250 APPLICATIONS TDA8705 High-speed analog-to-digital conversion for: • DBS (Digital Broadcast Satellite) • QPSK (Quadrature Phase Shift Keying) demodulation • Video.
GENERAL DESCRIPTION The TDA8705 is a 6-bit high-speed dual analog-to-digital converter (ADC) for satellite video and other applications.
It converts the two analog input signals into two 6-bit binary-coded digital words at a maximum sampling rate of 40 MHz.
All digital inputs and outputs are TTL compatible, alt...


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