SP8714

SP8714 SP8714 2100MHz Very Low Current Multi-Modulus Divider DS3562 - 5.1 April 1999 The SP8714 is a switchable divide by 32/33, 64/65 programmable divider which is guaranteed to operate up to 2100MHz. It will operate from a supply of 2.7V to 5.25V and requires typically 6.8mA (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. RF INPUT VCC RATIO SELECT OUTPUT 1 2 3 4 SP8714 8 7 6 5 RF INPUT POWER DOWN MODULUS CONTROL VEE FEATURES s s s s s s s Operation to 2100MHz Very Low Power Single Supply Operation 2.7V to 5.25V Power Down Facility for Battery Economy Latched Modulus Control Input Push Pull Output Drive ESD Protection on All Pins† MP8 Fig. 1 Pin connections - top view ORDERING INFORMATION SP8714 IG MPAS Industrial Temperature Range Miniature Plastic SOIC Package SP8714 IG MPAC As above supplied on Tape and Reel APPLICATIONS s Cellular Telephones s Cordless Telephones † ESD precautions must be observed V CK 6 MC D CC 2 250K NOMINAL D TYPE Q 7 POWER DOWN 3 RS V CC BIAS CONTROL LOGIC 5 V EE RF INPUT (CLOCK) 1 DIVIDE BY 4/5 8 V DIVIDE BY 8 / 16 4 OUTPUT EE Fig. 2 Block diagram 1 SP8714 ABSOLUTE MAXIMUM RATINGS Supply voltage (VEE=0V) (note 1) -0.5V to 7V Control and RF inputs, (note 1) -0.5V to VCC+0.5V RF output (VEE =0V) RF input current (note 1) 10mA Oper...