sp5655 Mitel, sp5655 Datasheet
sp5655
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sp5655 Summary of contents
Page 1
... Supersedes July 1996 version, DS3743-4.3 The SP5655 is a single chip frequency synthesiser designed for TV tuning systems. Control data is entered in the standard BUS format. The device contains 2 addressable current limited outputs and 4 addressable bidirectional open-collector ports, one of which is a 3-bit ADC. The information on these ...
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... SP5655 ELECTRICAL CHARACTERISTICS T = 220 C to 180 14·5V to 15·5V, reference frequency = 4MHz. AMB CC These Characteristics are guaranteed by either production test or design. They apply within the specified ambient temperature and supply voltage ranges unless otherwise stated. Characteristic Supply current Prescaler input voltage ...
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ABSOLUTE MAXIMUM RATINGS All voltages are referred to V and pin Parameter Supply voltage RF input voltage Port voltage Total port output current Address select voltage RF input DC offset Charge pump DC offset Drive output ...
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... C Bus. Data and from 512 to 1024, and is controlled by bit 7 of byte 4 (TS0); a logic 1 to 512, a logic 0 for 1024. The SP5655 differs from the SP5055 in this respect, only 512 being available on the SP5055. Note that the comparison frequency is 7·8125kHz when a 4MHz reference is used, and divide by 512 is selected. ...
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MSB Address Programmable divider Programmable divider 2 2 Charge pump and test bits 1 CP I/O port control bits P7 P6 Table 1 Write data format (MSB transmitted first) Address 1 1 Status byte ...
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... OSCILLATOR OUTPUT 47k 10k VARICAP INPUT 10n 300 150 100 50 120 6 IF SIGNAL 15V 12 5 SP5655 0· 130V 18p 16 1 39n 22k 180n V T 22k BCW31 Fig. 4 Typical application OPERATING WINDOW 1000 2000 2700 FREQUENCY (MHz) Fig ...
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... V REF 400 400 RF INPUTS RF input V CC CRYSTAL Q1 CRYSTAL Q2 Reference oscillator PORT Ports P7-P4 Fig. 6 SP5655 input/output interface circuits V CC CHARGE PUMP 150 DRIVE OUTPUT (O/P DISABLE) Loop amplifier V CC 67k 3k SCL/SDA * ACK * ON SDA ONLY SCL and SDA inputs V CC PORT P3 ONLY 3k PORT ...
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... I C bus radiation problems. The application note is published in the Mitel Semiconductor Media IC Handbook. A generic test/demonstration board has been produced, which can be used for the SP5655. A circuit diagram and layout for the board are shown in Figs. 8 and 9. 15V R11 3k ...
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Underside (surface mounted components side) NOTES 1. CIRCUIT SCHEMATIC IS SHOWN IN FIG ALL SUFACE MOUNT COMPONENTS ARE MOUNTED ON UNDERSIDE OF BOARD Top view (ground plane) Fig. 9 Test board layout TP1 = PIN 3 DC BIAS ...
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... SP5655 TEST MODES As explained in the functional description, The SP5655 can be programmed into a numb er of test modes. These are invoked by programming Hex codes into byte 4, those most commonly used being shown in Table 6. Other codes will also apply due to don’t care conditions, which are assumed the Table ...
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... Mitel. This publication is issued to provide information only and (unless agreed by Mitel in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other information appearing in this publication are subject to change by Mitel without notice. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specifi ...