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ACE9020KG データシート(PDF) 1 Page - Zarlink Semiconductor Inc |
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ACE9020KG データシート(HTML) 1 Page - Zarlink Semiconductor Inc |
1 / 6 page ACE9020 is a VHF oscillator, up-converter and prescaler. It is used in an offset modulated transmit architecture where a UHF synthesiser makes the channel selection and a second synthesiser generates a fixed transmit offset. A VCO signal drives a buffer in ACE9020 to feed an on- chip prescaler and transmit up-converter. The prescaler is a dual two-modulus divider and drives the main synthesiser input of the ACE9030. The SSB up-converter suppresses the unwanted transmit sideband. The VHF oscillator is buffered to drive the auxiliary synthesiser input of the ACE9030 and is locked to the offset frequency. This frequency is modulated by varying the resonant frequency of the external tank circuit. Both this oscillator and the UHF VCO drive the up-converting mixer to generate the transmit signal. Various power saving modes for battery economy are included. These allow the transmit sections to be shut down during stand-by and the whole chip can be shut down during sleep mode. The circuit techniques used have been chosen to minimise external components and at the same time give very high performance. Features • Low Power Low Voltage (3.6 to 5.0 V) Operation • Power Down Modes • Differential Signals to Minimise Cross-talk • Auxiliary Oscillator with Transmit Up-converter • Prescaler for Main Synthesiser • Part of the ACE Integrated Cellular Phone Chipset • Small Outline 28 pin Package Applications • AMPS and TACS Cellular Telephone • Two-Way Radio Systems Related Products ACE9020 is part of the following chipset: • ACE9030 Radio Interface and Twin Synthesiser • ACE9040 Audio Processor • ACE9050 System Controller and Data Modem ABSOLUTE MAXIMUM RATINGS Supply voltage 6V Storage temperature - 65 °Cto+150°C Operating temperature - 30 °Cto+85°C Voltage at any pin -0.3V to V CC +0.3V Static Sensitivity (HBM) min 500V Figure 2 - ACE9020 simplified block digram ACE9020 Receiver and Transmitter Interface DS4287 ISSUE 5.0 December 1997 Ordering Information SSOP 28 lead package, code NP28 ACE9020B/KG/NP1S - anti-static sticks ACE9020B/KG/NP1T - tape mounted Figure 1 - Pin connections - top view PD1 PD2 GND BIAS_REF VCC_TX TXPA+ TXPA- RSET_TXPA GND_TXOSC TANK+ TANK- VCC_DIV GND_OSC MOD_CNTRL DIV_OUT+ DIV_OUT- RATIO_SEL GND_DIV TXOSC+ TXOSC- VCC_TXOSC GND_RX RXVCOIN n.c. VCC_RX n.c. n.c. VCC 128 14 15 Note: Pin 1 is identified by moulded spot and by coding orientation. NP28 VHF OSC RSET_TXPA TANK+ TANK- TXOSC+ TXOSC- TXPA+ TXPA- BIAS & POWER DOWN CONTROL BIAS_REF PD1 PD2 RXVCOIN DIV_OUT+ DIV_OUT- RATIO_SEL MOD_CNTRL DIVIDE BY 64/65 OR 128/129 |
同様の部品番号 - ACE9020KG |
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同様の説明 - ACE9020KG |
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