Overview
The DS90C032TMX/NOPB is a quad CMOS differential line receiver designed by Texas Instruments. This device is optimized for applications requiring ultra-low power dissipation and high data rates. It utilizes Low Voltage Differential Signaling (LVDS) technology, supporting data rates in excess of 155.5 Mbps (77.7 MHz). The receiver accepts low voltage differential input signals as small as 350 mV and translates them to CMOS (TTL compatible) output levels. It also features a TRI-STATE function for output multiplexing and supports OPEN, shorted, and terminated input failsafe conditions with external biasing.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5.0 | 5.5 | V |
| Operating Free Air Temperature (TA) | -40 | 25 | 85 | °C (DS90C032T) |
| Operating Free Air Temperature (TA) | -55 | 25 | 125 | °C (DS90C032E) |
| Differential Input High Threshold (VTH) | 100 | mV | ||
| Differential Input Low Threshold (VTL) | -100 | mV | ||
| Differential Propagation Delay High to Low (tPHLD) | 1.5 | 3.40 | 6.0 | ns |
| Differential Propagation Delay Low to High (tPLHD) | 1.5 | 3.48 | 6.0 | ns |
| Differential Skew (tSKD) | 0 | 600 | ps | |
| Channel-to-Channel Skew (tSK1) | 0 | 1.5 | ns | |
| Rise Time (tTLH) | 0.5 | 2.5 | ns | |
| Fall Time (tTHL) | 0.5 | 2.5 | ns |
Key Features
- Supports data rates in excess of 155.5 Mbps (77.7 MHz)
- Accepts small swing (350 mV) differential input signals
- Ultra-low power dissipation
- 600 ps maximum differential skew (5V, 25°C)
- 6.0 ns maximum propagation delay
- Industrial and military operating temperature ranges
- Available in surface mount packaging (SOIC)
- Pin compatible with DS26C32A, MB570 (PECL), and 41LF (PECL)
- Supports OPEN input fail-safe, short and terminated input fail-safe with external biasing
- Compatible with IEEE 1596.3 SCI LVDS standard and ANSI/TIA/EIA-644 LVDS standard
Applications
The DS90C032 is primarily used in point-to-point configurations for high-speed data transmission. It is suitable for applications such as:
- High-speed point-to-point interfaces
- Uncomplicated point-to-point configurations using balanced media like twisted pair cables or PCB traces
- Multi-receiver configurations, though careful consideration of impedance discontinuities and noise margins is necessary
Q & A
- What is the maximum data rate supported by the DS90C032?
The DS90C032 supports data rates in excess of 155.5 Mbps (77.7 MHz).
- What is the minimum differential input signal level accepted by the DS90C032?
The device accepts differential input signals as small as 350 mV.
- What is the maximum propagation delay of the DS90C032?
The maximum propagation delay is 6.0 ns.
- Does the DS90C032 support failsafe conditions?
Yes, it supports OPEN input fail-safe, short and terminated input fail-safe with external biasing.
- What are the operating temperature ranges for the DS90C032?
The device operates in the range of -40°C to +85°C for the DS90C032T and -55°C to +125°C for the DS90C032E.
- Is the DS90C032 compatible with any industry standards?
Yes, it is compatible with IEEE 1596.3 SCI LVDS standard and ANSI/TIA/EIA-644 LVDS standard.
- What types of packaging are available for the DS90C032?
The device is available in surface mount packaging (SOIC).
- Can the DS90C032 be used in multi-receiver configurations?
Yes, but careful consideration of impedance discontinuities and noise margins is necessary.
- What is the power supply voltage range for the DS90C032?
The power supply voltage range is +4.5V to +5.5V.
- Does the DS90C032 have any ESD protection?
The device has limited built-in ESD protection, and special handling is recommended to prevent electrostatic damage.
