PDF TA1303AFN Data sheet ( Hoja de datos )

Número de pieza	TA1303AFN
Descripción	MIXER/OSCILLATOR BUILT-IN FREQUENCY SYNTHSIZER
Fabricantes	Toshiba Semiconductor
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No Preview Available ! TENTATIVE TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA1303AFN TA1303AFN MIXER / OSCILLATOR BUILT-IN FREQUENCY SYNTHESIZER FOR VHF, CATV AND UHF BAND. The TA1303AFN is a single chip which integrates a PLL and a MIX · OSC for VHF, CATV and UHF band. The control data conforms to 3-wire bus and I2C bus formats. Bus-SW can be used to easily switch for easy tuner system set-up. Flat, compact package: SSOP30 (0.65 mm pitch) FEATURES l MIX · OSC block · VHF · CATV bands: Mixer and Oscillator · UHF bands: Mixer and Oscillator · Built-in IF amplifier · Single IF output terminal l PLL block · Standard bi-directional I2C bus format control Weight: 0.17g (Typ.) · 3-wire bus format control · 18-bit and 19-bit automatical discrimination circuit (when 3-wire bus selected) · Tuning amplifier · 4-bit bandswitch drive transistor · 5-levels A / D convertor (when I2C bus selected) · Frequency step: 31.25 kHz, 50 kHz and 62.5 kHz (at 4 MHz X’tal used) · 4 programmable chip addresses (when I2C bus selected) · Power on reset circuit · 1 / 4 prescaler Note: These devices are easy to be damaged by high static voltage or electric fields. In regard to this, please handle with care. To input summary items. 1 2003-04-02 1 page PIN No. PIN NAME FUNCTION 19 20 UHF Oscillator 21 22 UHF oscillator pins. They are colpitts oscillator. 23 GND2 This is the ground pin for digital circuit. 24 IF Output Output terminal of IF signal which output impedance, 75 Ω 25 VCC2 This is power supply pin for digital circuit. 26 X’tal Crystal oscillator input. At this block, the reference signal is generated. 27 Charge Pump Output Tuning voltage output terminal. This LSI has a built-in tuning amplifier. 28 NF TA1303AFN INTERFACE ― ― 5 2003-04-02 5 Page TA1303AFN Fig.1 3-wire bus data timing chart (Falling edge timing) Fig.2 I2C bus data timing chart (Rising edge timing) REFERENCE DATA (VCC1 = 5 V, VCC2 = 5 V, VCC3 = 9 V, Ta = 25C°) CHARACTERISTIC TEST SYMBOL CIR- CUIT BAND TEST CONDITION Lock Up Time VHF fosc = 101 MHz→fosc = 173 MHz Lupt 3 VHF fosc = 179 MHz→fosc = 413 MHz UHF fosc = 419 MHz→fosc = 847 MHz VHF fRF = 55.25 MHz (−30 dBmW input) (CP = [1], fref = 15.625 kHz) Reference Leak Suppression Level fref S / I 3 VHF UHF fRF = 367.25 MHz (−30 dBmW input) (CP = [1], fref = 15.625 kHz) fRF = 373.25 MHz (−30 dBmW input) (CP = [1], fref = 15.625 kHz) UHF fRF = 801.25 MHz (−30 dBmW input) (CP = [1], fref = 15.625 kHz) Local Oscillator Leak VHF fosc = 101 MHz~fosc = 173 MHz Level (To IF Output) LOIF 3 VHF fosc = 179 MHz~fosc = 413 MHz [Worst Case] UHF fosc = 419 MHz~fosc = 847 MHz MIN TYP. MAX UNIT ― 40 ― ― 60 ― ms ― 30 ― ― 65 ― ― 60 ― dB ― 48 ― ― 53 ― ― −36 ― ― −36 ― dBmW ― −28 ― 11 2003-04-02 11 Page

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