TMUXHS4612 3.3V 6-Channel 20Gbps Differential 2:1 Mux / 1:2 Demux
1 Features
- Supports HDMI 1.4b/2.0/2.1 up to 12Gbps, USB4 up to 20Gbps, DisplayPort 1.4/2.1 up to UHBR20
- Data rate support up to 20Gbps
- High-speed path supports wide common-mode voltage range (0V to VCC)
- Low RON of 8.8Ω typical for high-speed data pins
- –3dB differential BW of 13.0GHz for high-speed data pins
- Excellent dynamic characteristics
at 10GHz:
- Insertion loss: –2.5dB
- Return loss: –13dB
- Cross talk: –30dB
- All sideband signals can pass-through up to 5V levels and are 5.5V tolerant
- Support 1.8V and 3.3V control logic
- Single supply voltage of 3.3V
- Low active (800μA) and standby power (32μA)
- IOFF protection that prevents current leakage when supply rail collapsed (VCC = 0V)
- Temperature range: –40°C to 125°C
- Package: 40-pin, 3mm × 6mm, 0.4mm pitch WQFN
3 Description
The TMUXHS4612 is a high-speed bidirectional passive switch in mux or demux configurations. The device is protocol agnostic supporting many applications including HDMI 1.4 / 2.0 / 2.1, and DisplayPort 1.4 / 2.1. The TMUXHS4612 is a generic analog differential passive mux or demux that works for many high-speed differential interfaces with data rates up to 20Gbps. The TMUXHS4612 high-speed channels support differential signaling and single-ended signaling as long as the single-ended signals do not violate VP-N_ABSMAX parameter. The sideband channels are 5V tolerant and support single-ended and differential signaling such as I2C, UART, DisplayPort AUX, and USB2, just to name few. The dynamic characteristics of the high-speed channel allows high-speed switching with minimal attenuation to the signal eye diagram and with very little added jitter. The silicon design of the device is optimized for excellent frequency response at higher frequency spectrum of the signals. The device supports differential signaling with common-mode voltage range (CMV) of 0V to 3.6V in the Dxx datapaths.
The TMUXHS4612 consumes very low active power of 800μA. The device also offers a power-down mode in which all channels become Hi-Z and the device operates with minimal power of just 32μA.
| PART NUMBER | TEMPERATURE | PACKAGE(1) | PACKAGE SIZE(2) |
|---|---|---|---|
| TMUXHS4612 | TA = 0°C to 105°C | RET (WQFN, 40) | 6mm × 3mm |
| TMUXHS4612I | TA = –40°C to 125°C |
Simplified Use Cases4 Pin Configuration and Functions
| PIN | TYPE | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| EN | 1 | I |
Device Enable L: Device Disabled. All data and sideband signals in Hi-Z. H: Device Enabled. All data and sideband signals selected by D_AB_SEL and SIDEBAND_SEL are enabled. |
| D_AB_SEL | 2 | I |
Selects between high-speed datapath A and B. L: High-speed datapath A H: High-speed datapath B |
| SIDEBAND_SEL | 3 | I |
Selects between sideband path A and B L: Sideband path A H: Sideband path B |
| D0– | 4 | I/O | Common Port, Channel 0, –ve signal |
| D0+ | 5 | I/O | Common Port, Channel 0, +ve signal |
| D1– | 6 | I/O | Common Port, Channel 1, –ve signal |
| D1+ | 7 | I/O | Common Port, Channel 1, +ve signal |
| D2– | 8 | I/O | Common Port, Channel 2, –ve signal |
| D2+ | 9 | I/O | Common Port, Channel 2, +ve signal |
| D3– | 10 | I/O | Common Port, Channel 3,–ve signal |
| D3+ | 11 | I/O | Common Port, Channel 3, +ve signal |
| HPD_A | 12 | I/O | Port A, Hot Plug Detect sideband signal |
| HPD_B | 13 | I/O | Port B, Hot Plug Detect sideband signal |
| HPD | 14 | I/O | Common Port, Hot Plug Detect sideband signal |
| GND | 15 | GND | Ground |
| DDC_AUX+ | 16 | I/O | Common Port, DDC or AUX sideband signal |
| DDC_AUX+A | 17 | I/O | Port A, DDC or AUX sideband signal |
| GND | 18 | GND | Ground |
| DDC_AUX+B | 19 | I/O | Port B, DDC or AUX sideband signal |
| D3+B | 20 | I/O | Port B, Channel 3, +ve signal |
| D3–B | 21 | I/O | Port B, Channel 3, –ve signal |
| D2+B | 22 | I/O | Port B, Channel 2, +ve signal |
| D2–B | 23 | I/O | Port B, Channel 2,–ve signal |
| D1+B | 24 | I/O | Port B, Channel 1, +ve signal |
| D1–B | 25 | I/O | Port B, Channel 1, –ve signal |
| D0+B | 26 | I/O | Port B, Channel 0, +ve signal |
| D0–B | 27 | I/O | Port B, Channel 0, –ve signal |
| D3+A | 28 | I/O | Port A, Channel 3, +ve signal |
| D3–A | 29 | I/O | Port A, Channel 3, –ve signal |
| D2+A | 30 | I/O | Port A, Channel 2, +ve signal |
| D2–A | 31 | I/O | Port A, Channel 2,–ve signal |
| D1+A | 32 | I/O | Port A, Channel 1, +ve signal |
| D1-A | 33 | I/O | Port A, Channel 1, –ve signal |
| D0+A | 34 | I/O | Port A, Channel 0, +ve signal |
| D0–A | 35 | I/O | Port A, Channel 0, –ve signal |
| VCC | 36 | Power | Supply Voltage |
| GND | 37 | GND | Ground |
| DDC_AUX-B | 38 | I/O | Port B, DDC or AUX sideband signal |
| DDC_AUX-A | 39 | I/O | Port A, DDC or AUX sideband signal |
| DDC_AUX- | 40 | I/O | Common Port, DDC or AUX sideband signal |
| GND | PowerPad | GND | Ground |
