TLC2932
HIGH-PERFORMANCE PHASE-LOCKED LOOP
SLAS097E – SEPTEMBER 1994 – REVISED MAY 1997
D
D
D
D
D
D
D
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
Phase-Frequency Detector (PFD) Section
Includes a High-Speed Edge-Triggered
Detector With Internal Charge Pump
Independent VCO, PFD Power-Down Mode
Thin Small-Outline Package (14 terminal)
CMOS Technology
Typical Applications:
– Frequency Synthesis
– Modulation/Demodulation
– Fractional Frequency Division
Application Report Available
†
CMOS Input Logic Level
PW PACKAGE†
(TOP VIEW)
LOGIC V
DD
SELECT
VCO OUT
FIN – A
FIN – B
PFD OUT
LOGIC GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VCO V
DD
BIAS
VCO IN
VCO GND
VCO INHIBIT
PFD INHIBIT
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
5
9
VCO IN
Phase
Frequency
Detector
6
BIAS
PFD OUT VCO INHIBIT
SELECT
12
13
10
2
Voltage-
Controlled
Oscillator
3
VCO OUT
AVAILABLE OPTIONS
PACKAGE
TA
– 20°C to 75°C
SMALL OUTLINE
(PW)
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
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
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