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MC12038A

Part Number	MC12038A
Manufacturer	Motorola
Description	1.1 GHz Low Power Dual Modulus Prescaler
Published	Feb 22, 2018
Detailed Description	Order this document by MC12038A/D 1.1 GHz Low Power Dual Modulus Prescaler The MC12038A can be used with CMOS synthesi...
Datasheet	MC12038A PDF File

Overview

Order this document by MC12038A/D 1.
1 GHz Low Power Dual Modulus Prescaler The MC12038A can be used with CMOS synthesizers requiring positive edges to trigger internal counters such as Motorola’s MC145XXX series in a PLL to provide tuning signals up to 1.
1 GHz in programmable frequency steps.
A Divide Ratio Control (SW) permits selection of a 127/128 or 255/256 divide ratio as desired.
The Modulus Control (MC) selects the proper divide number after SW has been biased to select the desired divide ratio.
• 1.
1 GHz Toggle Frequency • Supply Voltage of 4.
5 to 5.
5 V • Low–Power 4.
8 mA Typical • Operating Temperature Range of –40 to 85°C • Short Setup Time (tset) 16ns Maximum @ 1.
1 GHz • Modulus Control Input Level Is Compatible With Standard CMOS and TTL • On–Chip Output Termination FUNCTIONAL TABLE SW MC Divide Ratio HH 127 HL 128 LH 255 LL 256 NOTES: 1.
SW: H = VCC, L = Open.
A logic L can also be applied by grounding this pin, but this is not recommen...

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