TA2099F TOSHIBA Semiconductor CORPORATION, TA2099F Datasheet - Page 9

• Manufacturer Part Number: TA2099F
• Description: Am/fm If + Fm Stereo Detector
• Manufacturer: TOSHIBA Semiconductor CORPORATION

4. External change function
5. Others
(1)
(2)
(3)
(4)
(1)
(2)
(3)
(4)
Blender control
QUAD
L, R output
AGC
Narrowband detector: When the FM IF input signal is off-center, 10.7 MHz, by a few kHz, the
Pin 2:
LED ON sensitivity adjustment
Pin 3:
IF counter output sensitivity adjustment (Note 2)
Pin 5:
Note 2: For the LED on sensitivity, (2) and (3) are linked.
Pin 14: Changes the MPX L and R signal separation according to the input level set by the
V
Pin 22: Set to 2 V internally.
Pin 20: Supports both a ceramic discriminator and a detector coil for QUAD. See 1, in Description of
Pins 12, 13: L-OUT and R-OUT pins are used for current output. The external resistor is set to
Pin 7:
stb
Adjusts bandwidth using the resistor of the FM BW pin. In combination with the C
R
that when low-frequency sound is input, although tuning is maintained, the detector may
turn TUN-LED OFF.
Uses the FM VL SENS pin resistor value to change the ON sensitivity of TUN-LED.
Uses the FM S. SENS pin resistor value to change the sensitivity of the IF count output at IF
count ON.
resistance.
Operation.
Note that when a detector coil is used, S/N and the skew ratio deteriorates.
Also used as the FM S meter.
At IF count ON (connect resistor for pin 9 to GND), the internal current depending on the
pin 5 resistor value changes the IF amp gain, the S meter startup, and the IF input level
(sensitivity).
The LED ON sensitivity turns the LED ON by comparing the voltage which depends on the
pin 3 resistor value with the S meter voltage. The change in S meter startup (sensitivity) at
IF count ON causes the LED ON sensitivity set at IF count OFF to change. Therefore,
confirm the LED ON sensitivity according to the seek operation specification.
2
pin configures an HPF. The smaller the pin 2 capacitance, the higher the HPF cutoff. Note
output impedance. This is specified when the load is 5.1 kΩ and 0.01 µF.
detector turns TUN-LED OFF.
9
TA2099N/F
2001-12-19
2
pin, the