TLC2943 Datasheet, PDF (1/27 Pages) Texas Instruments – HIGH-PERFORMANCE DUAL PHASE-LOCKED BUILDING BLOCK

TLC2943
HIGH-PERFORMANCE DUAL PHASE-LOCKED BUILDING BLOCK
SLAS249 – NOVEMBER 1999
D Dual TLC2933 by Multichip Module
(MCM) Technology
D Voltage-Controlled Oscillators (VCO)
Section
– Complete Oscillator Using Only One
External Bias Resistor (RBIAS)
– Recommended Lock Frequency
Range
– 37 MHz to 60 MHz
(V_DD = 3.3 V ± 0.15 V, T_A = –20°C
to 75°C)
– 43 MHz to 100 MHz
(V_DD = 5 V ± 0.25 V, T_A = –20°C
to 75°C)
D Includes a High Speed Edge-Triggered
Phase Frequency Detector (PFD) With
Internal Charge Pump
D Independent VCO, PFD Power-Down
Mode
description
DB PACKAGE
(TOP VIEW)
LOGIC_1 V_{DD 1}
TEST_1 ₂
VCO_1 OUT ₃
F_IN-A_1 ₄
F_IN-B_1 ₅
PFD_1 OUT ₆
LOGIC_1 GND 7
GND 8
NC 9
NC 10
NC 11
GND 12
LOGIC_2 V_DD 13
TEST_2 14
VCO_2 OUT 15
F_IN-A_2 16
F_IN-B_2 17
PFD_2 OUT 18
LOGIC_2 GND 19
38 ^{VCO_1 V}DD
37 ^RBIAS ^_1
36 ^VCOIN_1
35 ^{VCO_1 GND}
34 ^{VCO_1 INHIBIT}
33 ^{PFD_1 INHIBIT}
32 ^NC
31 ^GND
30 ^NC
29 ^NC
28 ^NC
27 ^GND
26 ^{VCO_2 V}_DD
25 ^R_BIAS ^_2
24 VCOIN_2
23 VCO_2 GND
22 VCO_2 INHIBIT
21 PFD_2 INHIBIT
20 NC
The TLC2943 is a multichip module product that
uses two TLC2933 chips. The TLC2933 chip 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 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 that can be used
as a power-down mode. The high-speed and stable VCO characteristics of the TLC2933 make the TLC2943
suitable for use in dual high-performance phase-locked loop (PLL) systems.
TA
– 20°C to 75°C
AVAILABLE OPTIONS
PACKAGE
SMALL OUTLINE (DB)
TLC2943IDB
TLC2943IDBR (Tape and Reel)
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.
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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Copyright © 1999, Texas Instruments Incorporated
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