2.0GHz Dual Modulus Prescaler
edges to trigger internal counters such as Motorola’s MC145xxx series in a
PLL to provide tuning signals up to 2.0 GHz in programmable frequency
edges to trigger internal counters such as Fujitsu’s MB87001.
ratio as desired.
been biased to select the desired divide ratio.
NOTES: 1. SW: H = V CC , L = Open. A logic L can also be applied by grounding this pin,
NOTE: *Equivalent to a two–input NAND gate.
NOTES: 1. ESD data available upon request.
Internal Gate Count *
Internal Gate Propagation Delay
Internal Gate Power Dissipation
Speed Power Product
Power Supply Voltage, Pin 2
Operating Temperature Range
Storage Temperature Range
Modulus Control Input, Pin 6
The MC12034A can be used with CMOS synthesizers requiring positive
The MC12034B can be used with CMOS synthesizers requiring negative
A Divide Ratio Control (SW) permits selection of a 32/33 or 64/65 divide
The Modulus Control (MC) selects the proper divide number after SW has
2.0 GHz Toggle Frequency
Supply Voltage 4.5 to 5.5 V
MC12034A for Positive Edge Triggered Synthesizers
12mA Maximum, –40 to 85 C, V CC = 5.5 Vdc
Modulus Control Input is Compatible with Standard CMOS and TTL
Low–Power 8.5 mA Typical
2. MC: H = 2.0 V to V CC , L = GND to 0.8 V.
2. This device contains protection circuitry to guard against damage due to high
but this is not recommended due to increased power consumption.
static voltages or electric fields. However, precautions must be taken to avoid
applications of any voltage higher than maximum rated voltages to this high
impedance circuit. For proper operation, V in and V out should be constrained
to the range GND
(V in or V out )
V CC .
–0.5 to +7.0
–65 to +150
–0.5 to +6.5
–40 to +85
Motorola, Inc. 1997
DUAL MODULUS PRESCALER
MECL PLL COMPONENTS
Order this document by MC12034A/D
T A = –40 to +85 C