TA8805F(2001) Ver la hoja de datos (PDF) - Toshiba

Número de pieza

componentes Descripción

Fabricante

TA8805F
(Rev.:2001)

TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC

Toshiba 

TA8805F,TA1207F

<SIF circuit>

Note 12: Output signal voltage

SIF input : fo = 4.5 MHz, fm = 400 Hz, 25 kHz / devi, 84 dBµV

Measure output audio signal voltage.

Note 13: SIF input signal voltage sensitivity

SIF input : fo = 4.5 MHz, fm = 400 Hz, 25 kHz / devi, 84 dBµV

Measure output audio signal voltage (that voltage is 0 dB). Lower input SIF signal voltage gradually,

measure input SIF signal voltage when output audio signal voltage is −3 dB.

Note 14: Total harmonic distortion

SIF input : fo = 4.5 MHz, fm = 400 Hz, 7.5 kHz / devi, 84 dBµV

Note 15: AM Rejection

SIF input :

(1) FM : fo = 4.5 MHz, fm = 400 Hz, 25 kHz / devi, 84 dBµV

(2) AM : fo = 4.5 MHz, fm = 400 Hz, 30%AM, 84 dBµV

Measure difference of output audio signal voltage between (1) and (2).

Note 16: Signal-noise ratio

SIF input : fo = 4.5 MHz, fm = 400 Hz, 25 kHz / devi, 84 dBµV

Measure audio signal output voltage. : V1 [mVrms]

SIF input : fo = 4.5 MHz, fm = 400 Hz, 25 kHz / devi, 84 dBµV

Measure audio signal output voltage. : V2 [mVrms]

Signal-noise ratio is calculated by following equality.

Signal-noise ratio = 20 ℓog (V1 / V2) [dB]

Note 17: −3 dB bandwidth

SIF input : fo = 4.5 MHz, fm = 400 Hz, 25 kHz / devi, 84 dBµV

Measure audio signal output voltage (that voltage is 0 dB). Then change input signal frequency,

measure bandwidth that audio signal output voltage within −3 dB.

Note 18: Dependence of output signal voltage on power supply voltage

SIF input : fo = 4.5 MHz, fm = 400 Hz, 25 kHz / devi, 84 dBµV

Measure the audio signal output voltage when power supply voltage are 3.5 V and 5.5 V. (4.5 ± 1.0 V)

Compare those voltage and audio signal output voltage when power supply voltage is 4.5 V.

Note 19: Audio amp. voltage gain

Audio input : f = 1 kHz, VIN = 100 mVrms, Pin 11 : VCC

2001-02-26 11/17

Share Link: