TLC2943

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 (VDD = 3.3 V ± 0.15 V, TA = –20°C to 75°C) – 43 MHz to 100 MHz (VDD = 5 V ± 0.25 V, TA = –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 VDD 1 TEST_1 2 VCO_1 OUT 3 FIN-A_1 4 FIN-B_1 5 PFD_1 OUT 6 LOGIC_1 GND 7 GND 8 NC 9 NC 10 NC 11 GND 12 LOGIC_2 VDD 13 TEST_2 14 VCO_2 OUT 15 FIN-A_2 16 FIN-B_2 17 PFD_2 OUT 18 LOGIC_2 GND 19 38 VCO_1 VDD 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 VDD 25 RBIAS _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 th...