SP8713

SP8713 SP8713 1100MHz Very Low Current Three Modulus Divider DS3934 - 4.0 November 1997 The SP8713 is a switchable divide by 64/65/72 programmable divider which is guaranteed to operate up to 1100MHz. It will operate from a supply of 2.7V to 5.25V and requires typically 4.1mA (including the output current). It also features a power down facility for battery economy. The RF inputs are internally biased and should be capacitively coupled to the signal source. The output is designed to interface with CMOS synthesisers, such as the NJ88C50. RF INPUT VCC MODULUS CONTROL 1 OUTPUT 1 2 3 4 SP8713 8 7 6 5 RF INPUT POWER DOWN MODULUS CONTROL 2 VEE FEATURES s s s s s s s Operation to 1100MHz Very Low Power Single Supply Operation 2.7V to 5.25V Power Down Facility for Battery Economy Latched Modulus Control Inputs Push Pull Output Drive ESD Protection on All Pins† MP8 Fig. 1 Pin connections - top view APPLICATIONS s Cellular Telephones s Cordless Telephones s Mobile Radio † ORDERING INFORMATION SP8713 IG MPAS Industrial Temperature Range Miniature Plastic DIL Package SP8713 IG MPAC As above supplied on Tape and Reel ESD precautions must be observed V CC 2 250K NOMINAL 6 MC1 D DD TYPE TYPE CK Q 7 POWER DOWN 3 MC2 BIAS Q D V CC D TYPE CONTROL LOGIC 5 V EE RF INPUT (CLOCK) 1 DIVIDE BY 4/5 8 V DIVIDE BY 16 4 OUTPUT EE Fig. 2 Block diagram 1 SP8713 ABSOLUTE MAXIMUM RATINGS Supply voltage (VEE=0V) (note 1) -0.5V to 7V Control and RF inputs, (note 1) -0.5V to VC...