參數(shù)資料
型號： TLC2942PW
廠商： Texas Instruments, Inc.
英文描述： HIGH-PERFORMANCE DUAL PHASE-LOCKED LOOP BUILDING BLOCK
中文描述： 高效能雙鎖相環(huán)積木
文件頁數(shù)： 1/28頁
文件大?。?/td> 459K
代理商： TLC2942PW
TLC2942
HIGH-PERFORMANCE DUAL PHASE-LOCKED LOOP BUILDING BLOCK
SLAS146B – NOVEMBER 1996 – REVISED JUNE 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Dual TLC2932 by Multichip Module (MCM)
Technology
Voltage-Controlled Oscillator (VCO)
Section:
– Complete Oscillator Using Only One
External Bias Resistor (R
BIAS
)
– Recommended Lock Frequency Range:
22 MHz to 50 MHz (V
DD
= 5 V
±
5%,
T
A
= –20
°
C to 75
°
C,
×
1 Output)
11 MHz to 25 MHz (V
DD
= 5 V
±
5%,
T
A
= –20
°
C to 75
°
C,
×
1/2 Output)
– Output Frequency . . .
×
1 and
×
1/2
Selectable
Includes a High-Speed Edge-Triggered
Phase Frequency Detector (PFD) With
Internal Charge Pump
Independent VCO, PFD Power-Down Mode
description
The TLC2942 is a multichip module product that
uses two TLC2932 chips. The TLC2932 chip is
composed of a voltage-controlled oscillator and
an edge-triggered phase frequency detector. The
oscillation frequency range of each VCO is set by
an external bias resistor (R
BIAS
) and each VCO output can be a
×
1 or
×
1/2 output frequency. Each high speed
PFD with internal charge pump detects the phase difference between the reference frequency input and signal
frequency input from the external counter. The VCO and the PFD have inhibit functions that can be used as a
power-down mode. The high-speed and stable oscillation capability of the TLC2932 makes the TLC2942
suitable for use in dual high-performance phase-locked loop (PLL) systems.
AVAILABLE OPTIONS
PACKAGE
SMALL OUTLINE
(DB)
TA
–20
°
C to 75
°
C
TLC2942IDB
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.
Copyright
1997, Texas Instruments Incorporated
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.
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LOGIC V
DD1
SELECT1
VCO OUT1
F
IN
–A1
F
IN
–B1
PFD OUT1
LOGIC GND1
GND
NC
NC
NC
GND
LOGIC V
DD2
SELECT2
VCO OUT2
F
IN
–A2
F
IN
–B2
PFD OUT2
LOGIC GND2
VCO V
DD1
BIAS1
VCOIN1
VCO GND1
VCOINHIBIT1
PFD INHIBIT1
NC
GND
NC
NC
NC
GND
VCO V
DD2
BIAS2
VCOIN2
VCO GND2
VCOINHIBIT2
PFD INHIBIT2
NC
DB PACKAGE
(TOP VIEW)
NC – No internal connection
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