Overview
The SN65LV1224BDBRG4, produced by Texas Instruments, is a part of the SN65LV1224B deserializer chipset. This device is designed to work in conjunction with the SN65LV1023A serializer to transmit and receive serial data over differential backplanes or unshielded twisted pair (UTP) cables. The chipset operates at clock speeds ranging from 10 MHz to 66 MHz, enabling serial data rates between 120 Mbps and 792 Mbps payload throughput. The SN65LV1224B deserializer is characterized by its ability to synchronize quickly and maintain lock even in challenging data environments, making it suitable for various high-speed data transmission applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Type | LVDS | |
| Output Type | LVTTL | |
| Data Rate | 100 Mbps to 660 Mbps | |
| Operating Clock Frequency | 10 MHz to 66 MHz | |
| Supply Voltage | 3.0 V to 3.6 V | V |
| Operating Temperature | -40°C to 85°C | °C |
| Package Type | 28-SSOP | |
| Power Consumption | < 450 mW (Typ) at 66 MHz | mW |
Key Features
- Synchronization Mode: Faster lock times using internally generated SYNC patterns or random data synchronization.
- No External Components Required: For PLL synchronization, reducing the need for additional components.
- Fail-Safe Circuitry: On-chip fail-safe circuit that drives the serial input and LOCK signal high to prevent unintentional locking due to noise.
- Programmable Edge Trigger on Clock: Allows for flexible clocking configurations.
- Flow-Through Pinout: Facilitates easy PCB layout.
- High-Impedance Mode: Output pins can be placed in a high-impedance state without losing PLL lock.
- Industrial Temperature Qualified: Operates over a wide temperature range of -40°C to 85°C.
Applications
- Wireless Base Stations: High-speed data transmission in wireless communication systems.
- Backplane Interconnects: Serial data transmission over differential backplanes.
- DSLAM (Digital Subscriber Line Access Multiplexer): High-speed data processing in DSLAM systems.
Q & A
- What is the primary function of the SN65LV1224BDBRG4? The SN65LV1224BDBRG4 is a deserializer that converts serial LVDS data into parallel LVTTL data.
- What are the operating clock frequencies for the SN65LV1224B? The device operates at clock frequencies ranging from 10 MHz to 66 MHz.
- What is the maximum data rate supported by the SN65LV1224B? The maximum data rate is 660 Mbps.
- How does the SN65LV1224B handle synchronization? The device can synchronize using internally generated SYNC patterns or by locking to random data.
- What is the purpose of the fail-safe circuit in the SN65LV1224B? The fail-safe circuit prevents unintentional locking due to noise when the input is not actively driven.
- What are the typical power consumption and operating temperature ranges for the SN65LV1224B? The typical power consumption is less than 450 mW at 66 MHz, and the operating temperature range is -40°C to 85°C.
- In what package types is the SN65LV1224B available? The device is available in a 28-SSOP package.
- Can the SN65LV1224B be used in high-impedance mode? Yes, the output pins can be placed in a high-impedance state without losing PLL lock.
- What are some common applications of the SN65LV1224B? Common applications include wireless base stations, backplane interconnects, and DSLAM systems.
- How does the SN65LV1224B handle power-down mode? The device can be placed in a low-power mode by asserting the PWRDN pin low for a minimum of 16 ns.
