TLC2932_15 Datasheet, PDF (1/29 Pages) Texas Instruments – HIGH-PERFORMANCE PHASE-LOCKED LOOP

TLC2932
HIGH-PERFORMANCE PHASE-LOCKED LOOP
D Voltage-Controlled Oscillator (VCO)
Section:
– Complete Oscillator Using Only One
External Bias Resistor (R_BIAS)
– Lock Frequency:
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
D Phase-Frequency Detector (PFD) Section
Includes a High-Speed Edge-Triggered
Detector With Internal Charge Pump
D Independent VCO, PFD Power-Down Mode
D Thin Small-Outline Package (14 terminal)
D CMOS Technology
D Typical Applications:
– Frequency Synthesis
– Modulation/Demodulation
– Fractional Frequency Division
D Application Report Available^†
D CMOS Input Logic Level
SLAS097E – SEPTEMBER 1994 – REVISED MAY 1997
PW PACKAGE†
(TOP VIEW)
LOGIC V_DD
1
SELECT
2
VCO OUT
3
FIN – A
4
FIN – B
5
PFD OUT
6
LOGIC GND
7
14
VCO V_DD
13
BIAS
12
VCO IN
11
VCO GND
10
VCO INHIBIT
9
PFD INHIBIT
8
NC
† _{Available in tape and reel only and ordered as the}
TLC2932IPWLE.
NC – No internal connection
description
The TLC2932 is designed for phase-locked-loop (PLL) systems and is composed of a voltage-controlled
oscillator (VCO) and an edge-triggered-type phase frequency detector (PFD). The oscillation frequency range
of the VCO is set by an external bias resistor (R_BIAS). The VCO has a 1/2 frequency divider at the output stage.
The high-speed PFD with internal charge pump detects the phase difference between the reference frequency
input and signal frequency input from the external counter. Both the VCO and the PFD have inhibit functions,
which can be used as a power-down mode. The TLC2932 is suitable for use as a high-performance PLL due
to the high speed and stable oscillation capability of the device.
functional block diagram
FIN –A
FIN –B
PFD INHIBIT
4 _Phase
5 _Frequency 6
9 Detector
VCO IN
BIAS
PFD OUT _{VCO INHIBIT}
SELECT
12
13
10
Voltage-
Controlled
3
2 ^Oscillator
VCO OUT
AVAILABLE OPTIONS
PACKAGE
TA
SMALL OUTLINE
(PW)
– 20°C to 75°C TLC2932IPWLE
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.
† _{TLC2932 Phase-Locked-Loop Building Block With Analog Voltage-Controlled Oscillator and Phase Frequency Detector (SLAA011).}
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 © 1997, Texas Instruments Incorporated
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