Philips Semiconductors
1.4 GHz I2C-bus controlled synthesizer
Product specification
TSA5522
FEATURES
• Complete 1.4 GHz single chip system
• Three PNP band switch buffers (20 mA)
• Four bus-controlled bidirectional ports (NPN
open-collector outputs); only one port in 16-pin version
• 33 V tuning voltage output
• In-lock detector
• 5-step ADC
• Mixer-Oscillator (M/O) band switch output
• 15-bit programmable divider
• Programmable reference divider ratio (512, 640
or 1024)
• Programmable charge-pump current (50 or 250 µA)
• Varicap drive disable
• I2C-bus format
– address plus 4 data bytes transmission (write mode)
– address plus 1 status byte transmission (read mode)
– three independent addresses
• Low power and low radiation.
APPLICATIONS
• TV tuners and front-ends
• VCR tuners.
ORDERING INFORMATION
TYPE NUMBER
TSA5522M
TSA5522T
NAME
SSOP20
SO16
PACKAGE
DESCRIPTION
plastic shrink small outline package; 20 leads; body width 4.4 mm
plastic small outline package; 16 leads; body width 3.9 mm
VERSION
SOT266-1
SOT109-1
1996 Jan 23
2