LM7001 Direct PLL Frequency Synthesizer IC 4.5V to 6.5V 40mA DIP-16
The LM7001 is an NMOS LSI direct phase-locked loop (PLL) frequency synthesizer for electronic tuning in AM/FM tuners. It includes a high-speed programmable divider in the FM VCO circuit that enables direct division, simplifying the assembly of high-performance radio receivers. The IC features software compatibility with the LM7000 (excluding the IF calculation circuit) and operates via a standard 3-wire serial interface.
Features
- High-Speed Direct Division: Includes a high-speed programmable divider inside the FM VCO circuit for direct division.
- 7 Selectable Reference Frequencies: Supports 1 kHz, 5 kHz, 9 kHz, 10 kHz, 25 kHz, 50 kHz, and 100 kHz.
- Band-Switching Outputs: Features 3-bit open-drain band data outputs (BO1 to BO3).
- System Clock Outputs: Outputs a 400 kHz controller clock (SYC) and an 8 Hz clock time base via BO1.
- 3-Wire Serial Interface: Controlled via standard CE (Chip Enable), CL (Clock), and DATA input pins.
- LM7000 Compatible: Software compatible with the LM7000 (excluding the IF calculation circuit).
Specifications
| Parameter | Operating Range / Typical Value | Maximum Rating |
|---|---|---|
| Supply Voltage (VDD1 – PLL) | 4.5 V to 6.5 V | -0.3 V to +7.0 V |
| Supply Voltage (VDD2 – Oscillator) | 3.5 V to 6.5 V | -0.3 V to +7.0 V |
| Operating Current (IDD1) | 25 mA (typical) | 40 mA |
| Standby Current (IDD2) | 2.0 mA (typical) | 3.5 mA |
| Band Output Current (IOUT) | 0 to 3.0 mA (BO1 to BO3) | 3.0 mA |
| FM Input Frequency (fIN2) | 45 MHz to 130 MHz (sine wave) | — |
| FM Input Frequency (fIN3) | 5 MHz to 30 MHz (sine wave) | — |
| AM Input Frequency (fIN4) | 0.5 MHz to 10 MHz (sine wave) | — |
| Crystal Oscillator Frequency | 1.0 MHz to 8.0 MHz (7.2 MHz typical) | — |
| Allowable Power Dissipation (Pd) | — | 300 mW (at Ta = 85°C) |
| Operating Temperature (Topr) | -40°C to +85°C | -40°C to +85°C |
| Package Type | DIP-16 | — |
Applications
- Electronic tuning in AM/FM radio receivers and tuners
- High-performance digital frequency synthesis for radio communications equipment
Package Content
- 1 x LM7001 Direct PLL Frequency Synthesizer IC 4.5V to 6.5V 40mA DIP-16