PCF7991AT/1081/M,1 Integrated Circuit Chip popular integrated circuits
integrated circuit ic
,integrated circuit components
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| MAX3222CPW | 4738 | TI | 14+ | TSSOP |
| 30403* | 4770 | BOSCH | 16+ | QFP-64 |
| AD8333ACPZ | 4802 | ADI | 16+ | QFN |
| ATMEGA8L-8PU | 4834 | ATMEL | 13+ | DIP |
| CS5532-ASZ | 4866 | CIRRUS | 15+ | SSOP |
| AT89S52-24AU | 4898 | ATMEL | 16+ | QFP |
| AT89C51ED2-SLSUM | 4930 | ATMEL | 16+ | PLCC |
| 6DI50A-060 | 4922 | FUJI | 14+ | MODULE |
| DS1821 | 4914 | DALLAS | 14+ | SOP8 |
| MC10EP32DR2 | 4906 | ON | 14+ | SOP8 |
| SKR71/16 | 4898 | SEMIKRON | 16+ | DO-5 |
| XC9572XL-10VQG44C | 4890 | XILINX | 16+ | QFP |
| 74LS14 | 4882 | FSC | 13+ | DIP |
| BSM75GD120DLC | 4874 | 15+ | MODULE | |
| MHL18336 | 4866 | MOT | 16+ | SMD |
| LE82G31/SLASJ | 4858 | NVIDIA | 16+ | BGA |
| N82C42PC | 4850 | INTEL | 14+ | PLCC |
| MCP2515-I/P | 4842 | MICROCHIP | 14+ | DIP18 |
| CC2530F256 1136+ | 4834 | TI | 14+ | QFN-40 |
| LM5033MM | 4826 | NS | 16+ | MSOP |
| ADM660ARZ | 4818 | AD | 16+ | SOP |
| P89V51RD2FN | 4810 | 13+ | DIP |
PCF7991AT Advanced Basestation IC, ABIC
Features
· Extended system operating range due to powerful AM/PM demodulation technique
· Ideally suited for "Intelligent Antenna" and "Active Antenna" architectures
· High antenna drive capabilities, CW: 200mAp
· Low antenna driver output resistance, 3.5 Ω
· Excellent receiver sensitivity, 2mVpp
· Large receiver dynamic range
· Programmable clock divider, modulator, receiver gain and filter characteristics
· Fast "read after write" receiver settling characteristics
· On-chip receive EMI filter
· Antenna failure mode detection
· Few external components
· Operating supply voltage: 4.5 to 5.5 V
· Power down mode: 7μA @ 5.5 V
· 14-pin SO package
General Description
The PCF7991 is a highly integrated and powerful advanced basestation IC, ABIC, ideally suited for vehicle immobilisation applications. The device incorporates all necessary functions to facilitate reading and writing of transponders.
The ABIC, PCF7991 employs a unique AM/PM demodulation technique that extends the system operating range compared with simple envelope detection.
Optimised to operate with the Philips transponder family (PCF79xx), the ABIC can be used in combination with commonly available transponder that employ ASK modulation. ASK modulation and receive characteristics are widely programmable for powerful system adaptation. The ABIC fits "Intelligent Antenna" as well as "Active Antenna" applications.
The carrier frequency can be derived from an on-chip oscillator or an external clock source. A wide range of clock frequencies can be applied due to the programmable on-chip clock divider circuitry.
The device enables system diagnostic functions by antenna fail detection features.
Communication with the device and the transponder is provided via the serial microcontroller interface.
Employing CMOS technology, the device features low power operation and supports Idle and Powerdown modes.
Minimum Application Circuitry
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| Image | Part # | Description | |
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SC-88 6 Leads PUSB2X4Y125 ESD Protection Rectifier Diode 0.85pF |
3.8V (Typ) Clamp 4.5A (8/20µs) Ipp Tvs Diode Surface Mount 6-TSSOP
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BFS505,115 15V RF Power Transistor , 18mA 9GHz 150mW Surface Mount Transistor |
RF Transistor NPN 15V 18mA 9GHz 150mW Surface Mount SC-70
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MFRC52201HN1,157 IC Smart Card Reader Monitoring 13.56MHz IC Rfid Reader |
RFID Reader IC 13.56MHz ISO 14443, MIFARE I²C, SPI, UART 2.5V ~ 3.3V 32-VFQFN Exposed Pad
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PDTA143ZE,115 Chip Diode NEW AND ORIGINAL STOCK |
Pre-Biased Bipolar Transistor (BJT) PNP - Pre-Biased 50 V 100 mA 150 mW Surface Mount SC-75
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BT136-600E/L01,127 Chip Diode NEW AND ORIGINAL STOCK |
TRIAC Logic - Sensitive Gate 600 V 4 A Through Hole TO-220AB
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BUK7510-100B,127 Chip Diode NEW AND ORIGINAL STOCK |
N-Channel 100 V 75A (Tc) 300W (Tc) Through Hole TO-220AB
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PMN45EN,135 Chip Diode NEW AND ORIGINAL STOCK |
N-Channel 30 V 5.2A (Tc) 1.75W (Tc) Surface Mount 6-TSOP
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BAT721S,215 NEW AND ORIGINAL STOCK |
Diode Array 1 Pair Series Connection 40 V 200mA (DC) Surface Mount TO-236-3, SC-59, SOT-23-3
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BAT74S,135 Field Effect Transistor NEW AND ORIGINAL STOCK |
Diode Array 2 Independent 30 V 200mA (DC) Surface Mount 6-TSSOP, SC-88, SOT-363
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BCX51,115 NEW AND ORIGINAL STOCK |
Bipolar (BJT) Transistor PNP 45 V 1 A 145MHz 1.3 W Surface Mount SOT-89
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