ta1326fng TOSHIBA Semiconductor CORPORATION, ta1326fng Datasheet - Page 4

• Manufacturer Part Number: ta1326fng
• Description: Uhf Band Rf Modulator Ic For Vtrs
• Manufacturer: TOSHIBA Semiconductor CORPORATION

No.
Pin
10
11
12
13
14
7
8
9
SDA
RF signal
output
RF PLL loop
filter
Analog GND (0 V)
RF OSC1
RF OSC2
Analog GND (0 V)
Sound VCO
bypass
capacitor
Name
L: ≤ 1.5 V
H: ≥ 2.0 V
3.7 V
3.5 V
3.5 V
DC Voltage
(typ.)
⎯
⎯
AC Voltage
81dBµV
(typ.)
⎯
⎯
⎯
⎯
⎯
⎯
⎯
D.GND
14
A.GND
11
7
D.V
A.V
CC
CC
4
1 kΩ
ACK
Interface
6 kΩ
⎯
⎯
200 Ω
A.V
A.GND
D.GND
D.V
A.V
A.GND
12
CC
CC
CC
8
9
Pin connected to I
serial data line.
Data transfer rate
conforms to Fast Mode
standard.
RF signal output pin.
Low-impedance
emitter-follower output
RF oscillation frequency
is compared with I
RF setting frequency,
and the error is outputted
by Charge pump.
LPF for high frequency
rejection is connected to
this terminal. The signal
after a high frequency
rejection is amplified with
common-emitter
amplifier, and the voltage
for frequency control
impressed to variable
capacitor is generated.
The reference frequency
is 62.5 kHz.
Analog GND
Differential
common-emitter Colpitts
oscillator.
Toshiba recommends
use of a Clapp oscillator
as external LC
resonance circuit to
reduce effects of IC
parasitic capacitance and
others.
Analog GND
Bypass capacitor pin
used by sound VCO to
reduce bias noise.
The smaller the external
capacitance, the worse
the sound S/N.
TA1326FNG
Note
2
2
C bus
C bus