NTE974 Integrated Circuit Phase–Frequency Detector Description: The NTE974 consists of two digital phase detectors, a charge pump, and an amplifier. In combination with a voltage controlled multivibrator, it is useful in a broad range of phase–locked loop applications. The circuit accepts MTTL waveforms at the R and V inputs and generates an error voltage that is proportional to the frequency and/or phase difference of the input signals. Phase detector #1 is intended for use in systems requiring zero frequency and phase difference at lock. Phase detector #2 is used if quadrature lock is desired. Phase detector #2 can also be used to indicate that the main loop, utilizing phase detector #1, is out of lock. Absolute Maximum Ratings: Supply Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.75 to 5.25V Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.0V Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.5V Output Voltage, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.5V Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Maximum Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.07°C/mW Thermal Resistance, Junction–to–Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.15°C/mW Electrical Characteristics: (TA = +25°C unless otherwise spcified) Parameter Symbol Pin IIL 1, 3 Test Conditions Min Typ Max Unit – – –4.8 mA – – –1.6 mA VIH = 5.5V, VCCH = 5.25V – – 120 µA 4 VCCH = 5.25V – – 5.0 µA 11 VIH = 5.5V, VCCH = 5.25V – – 40 µA 1.0 – – mA – – –1.5 V Input Forward Current VIL = 0.4V, VCCH = 5.25V 11 Leakage Current IIH IIHH Clamp Voltage VIC 1, 3 1, 3, 11 VIHH = 5.5V, VCCH = 5.25V 1, 3 IIC = –10 mA, VCCL = 4.75V Note 1. The outputs of the device must be tested by sequencing through the indicated input states according to the truth table. All input, power supply, and ground voltages must be maintained between tests unless otherwise noted. Note 2. Input Loading Factor: R, V = 3 Output Loading Factor (Pin8) = 10 Total Power Dissipation = 85mW Typ/Pkg Propagation Delay Time = 9ns Typ (thru phase detector) Electrical Characteristics (Cont’d): (TA = +25°C unless otherwise spcified) Parameter Symbol Pin Test Conditions Min Typ Max Unit 2.5 – – V – – 0.4 V Output (Note 1) Ouput Voltage VOH VOL 6 IOL = 20mA, VIHT = 1.8V, VCCL = 4.75V VOH 12 IOH1 = –1.6mA, VIHT = 1.8V, VCCL = 4.75V 2.5 – – V VOH 6 IOH1 = –1.6mA, VILT = 1.1V, VIHT = 1.8V, VCCL = 4.75V 2.5 – – V VOL 12 IOL = 20mA, VILT = 1.1V, VIHT = 1.8V, VCCL = 4.75V – – 0.4 V VOH 2 IOH1 = –1.6mA, VILT = 1.1V, VCCL = 4.75V 2.5 – – V VOL 13 IOL = 20mA, VILT = 1.1V, VCCL = 4.75V – – 0.4 V VOH 2 IOH1 = –1.6mA, VILT = 1.1V, VIHT = 1.8V, VCCL = 4.75V 2.5 – – V VOL 13 IOL = 20mA, VILT = 1.1V, VIHT = 1.8V, VCCL = 4.75V – – 0.4 V VOH 2, 13 IOH1 = –1.6mA, VILT = 1.1V, VCCL = 4.75V 2.5 – – V VOH 2, 13 IOH1 = –1.6mA, VILT = 1.1V, VIHT = 1.8V, VCCL = 4.75V 2.5 – – V – – 0.4 V 2.5 – – V – – 0.4 V VOL 2 IOL = 20mA, VILT = 1.1V, VCCL = 4.75V VOH 13 IOH1 = –1.6mA, VILT = 1.1V, VCCL = 4.75V VOL 2 IOL = 20mA, VILT = 1.1V, VIHT = 1.8V, VCCL = 4.75V VOH 13 IOH1 = –1.6mA, VILT = 1.1V, VIHT = 1.8V, VCCL = 4.75V 2.5 – – V VOL 2 IOL = 20mA, VILT = 1.1V, VCCL = 4.75V 2.5 – – V VOH 13 IOH1 = –1.6mA, VILT = 1.1V, VCCL = 4.75V 2.5 – – V VOL 2 IOL = 20mA, VILT = 1.1V, VIHT = 1.8V, VCCL = 4.75V 2.5 – – V VOH 13 IOH1 = –1.6mA, VILT = 1.1V, VIHT = 1.8V, VCCL = 4.75V 2.5 – – V 2.5 – – V –20 – –65 mA –20 – –65 mA –20 – –65 mA 2, 13 VIHT = 1.8V, VCC = 5V – – 250 µA 6, 12 VCC = 5V – – 250 µA VOH Short Circuit Current 6, 12 IOH1 = –1.6mA, VILT = 1.1V, VCCL = 4.75V IOS 2, 13 IOH1 = –1.6mA, VILT = 1.1V, VCCL = 4.75V 2 VIHT = 1.8V 6, 12 VCC = 5V 13 VIHT = 1.8V, VCC = 5V Collector–Emitter Voltage IOLK Output Voltage VEH 10 IOH2 = –1.0mA, VILT = 1.1V, VCCL = 4.75V 1.5 – – V Output Current IO 8 IA = 0.002mA, VCCH = 5.25V 0.8 – – mA Leakage Current IOLK 8 VCCH = 5.25V – – 120 µA 10 VIH = 2.5V, Vout = 1.5V, VCCH = 5.25V – – 5.0 µA – – 40 mA Power Requirements (Total Device) Power Supply Drain ICC 14 VCC = 5V Note 1. The outputs of the device must be tested by sequencing through the indicated input states according to the truth table. All input, power supply, and ground voltages must be maintained between tests unless otherwise noted. Note 2. Input Loading Factor: R, V = 3 Output Loading Factor (Pin8) = 10 Total Power Dissipation = 85mW Typ/Pkg Propagation Delay Time = 9ns Typ (thru phase detector) Pin Connection Diagram R 1 14 VCC D1 2 13 U1 V 3 12 U2 PU 4 11 PD UF 5 10 DF D2 6 9 Amp In GND 7 8 Output 14 8 1 7 .785 (19.95) Max .300 (7.62) .200 (5.08) Max .100 (2.45) .600 (15.24) .099 (2.5) Min