Details, datasheet, quote on part number: SP5024BDPAS
PartSP5024BDPAS
Category
DescriptionSP5024 - 1.3GHz 3-Wire Bus Controlled Synthesizer
CompanyZarlink Semiconductor
DatasheetDownload SP5024BDPAS datasheet
  

 

Features, Applications

The is a programming variant of the SP5510 allowing the design of one tuner with either I 2C bus or 3-wire bus format depending on which device is inserted. The SP5024, when used with a TV varicap tuner, forms a complete phase locked loop tuning system. The circuit consists a divide-by-8 prescaler with its own preamplifier and a 15 bit programmable divider controlled by a serially - loaded data register. Four open-collector outputs, each independently programmable, are included. The device has two modes of operation selected by the 'mode selected input'. In mode 1 the comparison frequency is 7.8125kHz and the programmable divider MSB is bypassed; mode 2 comparison frequency is 6.25kHz. The comparison frequencies are both obtained from a 4MHz crystal controlled on-chip oscillator. The comparator has a charge pump output with an output amplifier stage around which feedback may be applied. Only one external transistor is required for varicap line driving.

CHARGE PUMP CRYSTAL MODE SELECT DATA CLOCK PORT P4 PORT P3 PORT P2 PORT P1
DRIVE OUTPUT VEE RF INPUT RF INPUT VCC NC LOCK ENABLE

FEATURES s Complete 1.3GHz Single Chip System s Dual Standard or 62.5kHz Step Size s Low Power Consumption 40mA) s Programming Compatible with Toshiba TD6380 and * s Pin Compatible with * s Low Radiation s Varactor Drive Amplifier Disable s Charge Pump Disable s Single Port 18/19 Bit Serial Data Entry s Four Controllable Outputs s ESD Protection

CHARGE PUMP CRYSTAL MODE SELECT DATA CLOCK PORT P4 PORT P3 PORT P2
DRIVE OUTPUT VEE RF INPUT RF INPUT VCC LOCK ENABLE

APPLICATIONS s Satellite TV When Combined With SP4902 2.5GHz Prescaler s Cable Tuning Systems s VCRs

Tamb to +80C, VCC to +55V. Reference frequency = 4MHz. Pin numbers refer to SP5024 (DP package). These characteristics are guaranteed by either production test or design. They apply within the specified ambient temperature and supply voltage unless otherwise stated. Value Characteristic Supply current Prescaler input voltage Prescaler input voltage Prescaler input impedance Input capacitance High level input voltage High level input voltage Low level input voltage High level input current Low level input current Low level input current High level input current Low level input current Clock input hysteresis Clock rate Data set up time Data hold time Enable set up time Enable hold time Clock-to-enable time Charge pump output current Charge pump output leakage current Drift due to leakage Charge pump drive output current Charge pump amplifier gain Oscillator temperature stability Oscillator stability with supply voltage Recommended crystal series resistance Crystal oscillator drive level Crystal oscillator source impedance mV p-p Nominal spread ppm/C ppm/V "Parallel resonant" crystal t5 t4 Symbol ICC Pin Min. VCC Typ. 40 Max. 300 mA mVRMS A V MHz A nA mV/s mA See Fig. 3 See Fig. 3 See Fig. 3 See Fig. 3 See Fig. 4 V pin 20V V pin 20V At collector of external varicap drive transistor V pin = 07V Pin 18 Current 100A VIN = 55V, VCC = 55V VIN = 0V, VCC = 55V VIN = 0V, VCC = 55V VIN = 55V, VCC = 55V VIN = 0V, VCC = 55V VCC to 1GHz sinewave 1.3GHz, see Fig. 5 Units Conditions

Value Characteristic Port and Lock sink current Port leakage current Lock leakage current Varactor Drive Amp Disable Charge Pump Disable Symbol Pin Min. Typ. Max. mA A VOUT = 0.7V VOUT = 13.2V VOUT = VCC VIN = <0V VIN = <0V Units Conditions

All voltages are referred to VEE = 0V Parameter Supply voltage Prescaler inputs Output ports Total port output current Prescaler DC offset Loop amplifier DC offset Crystal oscillator DC offset Data bus inputs Storage temperature Junction temperature DP 18 thermal resistance, chip-to-ambient DP 18 thermal resistance, chip-to-case MP 16 thermal resistance, chip-to-ambient MP 16 thermal resistance, chip-to-case Power consumption at 5V Pin SP5024 S Value Units Min. -0.3 Max. VCC+0.3 V Vp-p mA C C/W mW All ports off With VCC applied Port in off state Port in on state Conditions

CLOCK DATA ENABLE MODE SELECT DATA INPUT INTERFACE
CHARGE PUMP 14/15 BIT LATCH DIVIDER RATIO CHARGE PUMP AMP DRIVE/VARICAP OUTPUT

 

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