UMA1005T Philips Semiconductors (Acquired by NXP), UMA1005T Datasheet - Page 2

• Manufacturer Part Number: UMA1005T
• Description: Dual Low-power Frequency Synthesizer
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
FEATURES
APPLICATIONS
ORDERING INFORMATION
November 1994
TYPE NUMBER
Fast locking by ‘Fractional-N’ divider
Auxiliary synthesizer
Digital phase comparator with proportional and integral
charge pump output
High-speed serial input
Low-power consumption
Programmable charge pump currents
Supply voltage range 2.9 to 5.5 V.
Mobile telephony
Portable battery-powered radio equipment.
Dual low-power frequency synthesizer
UMA1005T
SSOP20
NAME
plastic shrink small outline package; 20 leads; body width 4.4 mm
2
GENERAL DESCRIPTION
The UMA1005T is a low-power, high-performance dual
frequency synthesizer fabricated in CMOS technology.
Fractional-N division with selectable modulo 5 or 8 is
implemented in the main synthesizer.
The detectors and charge pumps are designated to
achieve 10 to 5000 kHz channel spacing using
fractional-N decreases the channel spacing by a factor
5 or 8. Together with an external standard 2, 3 or 4 ratio
prescaler the main synthesizer can operate in the GHz
frequency range.
Channel selection and programming is realized by a
high-speed 3-wire serial interface.
DESCRIPTION
PACKAGE
Preliminary specification
UMA1005T
SOT266-1
VERSION