The Sanyo LM7007M and LM7007HM are dual-PLL frequency synthesizer ICs intended for use in 250 to 380 MHz cordless telephone transceivers. Each device comprises two PLL circuits, 16-bit transmit and receive programmable dividers, a temperature-compensated crystal oscillator (TCXO) amplifier, and two transistors for external low-pass filters. The chips operate from a 2.8 to 4.5 V supply and are available in 24-pin MFP packages.
Key features include a dual charge pump and fast-lockup circuit in each PLL for rapid locking, support for standard TCXO frequencies of 10.625, 12.8, and 21.25 MHz, and a three-wire serial computer control bus (C?B) interface. The document provides detailed pin descriptions, electrical specifications, and functional descriptions for programming the device.
| Supply Voltage Range | 2.8 to 4.5 V |
|---|---|
| Package Type | 24-pin MFP |
| Operating Temperature Range | -20 to 75 °C |
| Storage Temperature Range | -55 to 125 °C |
| Power Dissipation | 350 mW |
| TCXO Frequencies | 10.625, 12.8 and 21.25 MHz |
| Programmable Divider Range | 256 to 65535 |
The standard TCXO input frequencies are 10.625, 12.8, and 21.25 MHz.
The devices operate from a 2.8 to 4.5 V supply.
The allowable divider ratios are in the range 256 to 65535.