Overview
The SN65LVDS84AQ-Q1 is a FlatLink™ transmitter produced by Texas Instruments. This integrated circuit contains three 7-bit parallel-load serial-out shift registers and four low-voltage differential signaling (LVDS) line drivers. It is designed to transmit 21 bits of single-ended LVTTL data synchronously over three balanced-pair conductors, making it suitable for applications such as SVGA, XGA, or SXGA data transmission from a controller to a display with very low electromagnetic interference (EMI). The device operates from a single 3.3-V supply, consumes 89 mW typically, and is packaged in a Thin Shrink Small-Outline Package (TSSOP) with a 20-mil terminal pitch. It requires no external components for its phase-locked loop (PLL) and is qualified for automotive applications, operating over a temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | 3.3 | 3.6 | V |
| Operating Temperature Range (TA) | –40 | 125 | °C | |
| Input Clock Period (tc) | 13.3 | 32.4 | ns | |
| Differential Load Impedance (ZL) | 90 | 132 | Ω | |
| Differential Steady-State Output Voltage (|VOD|) | 247 | 454 | mV | |
| Peak-to-Peak Common-Mode Output Voltage (VOC(PP)) | 80 | 150 | mV | |
| Quiescent Supply Current (ICC(AVG)) at 65 MHz | 27 | 35 | mA | |
| Quiescent Supply Current (ICC(AVG)) at 75 MHz | 30 | 38 | mA | |
| Input Capacitance (CI) | 2 | pF | ||
| Package Type | TSSOP (DGG) | |||
| Pins | 48 |
Key Features
- 21:3 Data Channel Compression at up to 196 Mbytes/s Throughput
- Suited for SVGA, XGA, or SXGA data transmission from controller to display with very low EMI
- 21 data channels plus clock in low-voltage TTL inputs and 3 data channels plus clock out low-voltage differential signaling (LVDS) outputs
- Operates from a single 3.3-V supply and consumes 89 mW typically
- Packaged in Thin Shrink Small-Outline Package (TSSOP) with 20-mil terminal pitch
- Consumes less than 0.54 mW when disabled
- Wide phase-lock input frequency range: 31 MHz to 75 MHz
- No external components required for PLL
- Outputs meet or exceed the requirements of ANSI EIA/TIA-644 Standard
- SSC tracking capability of 3% center spread at 50-kHz modulation frequency
- Improved replacement for SN75LVDS84 and NSC DS90CF363A 3-V device
- Qualified for automotive applications
Applications
- SVGA, XGA, or SXGA data transmission from a controller to a display
- Automotive applications due to its operating temperature range of –40°C to 125°C
- Any system requiring high-speed data transmission with low EMI, such as in industrial, medical, or consumer electronics
Q & A
- What is the primary function of the SN65LVDS84AQ-Q1?
The SN65LVDS84AQ-Q1 is a FlatLink™ transmitter that converts 21 bits of single-ended LVTTL data into three serial streams and a phase-locked clock, transmitted over LVDS outputs.
- What is the operating voltage range of the SN65LVDS84AQ-Q1?
The device operates from a single 3.3-V supply, with a voltage range of 3 to 3.6 V.
- What is the operating temperature range of the SN65LVDS84AQ-Q1?
The device operates over a temperature range of –40°C to 125°C.
- What type of package does the SN65LVDS84AQ-Q1 come in?
The device is packaged in a Thin Shrink Small-Outline Package (TSSOP) with 48 pins and a 20-mil terminal pitch.
- Does the SN65LVDS84AQ-Q1 require any external components for its PLL?
No, the SN65LVDS84AQ-Q1 does not require any external components for its phase-locked loop (PLL).
- What are the key applications of the SN65LVDS84AQ-Q1?
The device is suited for SVGA, XGA, or SXGA data transmission and is qualified for automotive applications.
- How much power does the SN65LVDS84AQ-Q1 consume when enabled and disabled?
When enabled, it consumes around 89 mW typically, and less than 0.54 mW when disabled.
- What is the input clock frequency range for the SN65LVDS84AQ-Q1?
The device has a wide phase-lock input frequency range of 31 MHz to 75 MHz.
- Does the SN65LVDS84AQ-Q1 meet any specific standards for LVDS outputs?
Yes, the outputs meet or exceed the requirements of the ANSI EIA/TIA-644 Standard.
- How does the SN65LVDS84AQ-Q1 handle SSC tracking?
The device has an SSC tracking capability of 3% center spread at a 50-kHz modulation frequency.
