ECL PRESCALER
TOSHIBA Bipolar Digital Integrated Circuit Silicon Monolithic
TD7104P,TD7104F
TD7104P/F
ECL Prescaler For Digital Synt...
Description
TOSHIBA Bipolar Digital Integrated Circuit Silicon Monolithic
TD7104P,TD7104F
TD7104P/F
ECL Prescaler For Digital Synthesized Tuner
TD7104P,TD7104F are general−purpose fixed dividing prescaler developed for digital tuning system of PLL frequency synthesizer type, and can operate up to 1GHz.
Features
· Maximum operating frequency 1GHz. (at 1 / 8 dividign mode)
· Dividing ratios of 1 / 8, 1 / 4, and 1 / 2 are provided. · Independent TV and FM inputs are provided.
In FM mode, this IC can function as a buffer amplifier (1 / 1 dividing). · The built−in input amplifier contributes to realizing high input voltage sensitivity. · built−in stand−by circuit
Pin Connection
Weight DIP8−P−300−2.54A: 0.45g (typ.) SOP8−P−225−1.27: 0.76g (typ.)
Block Diagram
1 2002-10-30
Pin Function
Pin No. 1
Symbol VCC
2 FMIN
Pin Name
Power supply terminal
FM local OSC. signal input terminal
3
TVIN
TV local OSC. signal input terminal
4
GND
Ground terminal
5
Out
Dividing signal output terminal
6 N1
Dividing ratio selecting control terminal
7 N2
8
BIAS
BIAS terminal
TD7104P/F
Function And Description
Applies voltage of VCC = 3.0 to 5.5V
Inputs local oscillation signal in FM band. fIN = 50 to 200MHz, FMIN input signal is output by 1 / 1 dividing (buffer amplifier).
Inputs local oscillation signal in TV band. FIN = 50M to 1.0GHz, TVIN input signal is output by 1 / 8, 1 / 4, or 1 / 2 dividing, which is controlled with N1 and N2 input.
Grounds.
Outputs dividing signal.
These inputs contr...
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