Model No: FSA646UCX
onsemi FSA646UCX
Manufacturer: onsemi
SEMICON NO.: FSA646UCX
Package: 36-WLCSP
Stock: In stock
Description: Analog Switch SPDT MIPI 4 Data Lane
SEMICON NO.: FSA646UCX
Package: 36-WLCSP
Stock: In stock
Description: Analog Switch SPDT MIPI 4 Data Lane
Quantity :
| Mfr | AMD |
| Device Type | 2:1 MIPI D-PHY/C-PHY Analog Switch |
| Configuration | 2:1 Multiplexer/Demultiplexer |
| Switch Circuit | SPDT |
| Number of Channels | 4 (Differential) |
| Interface | MIPI D-PHY and C-PHY |
| Supply Voltage | 1.5 V to 5.0 V |
| On-State Resistance | 6 Ω (Typ) |
| On Capacitance | 1.5 pF (Typ) |
| Off-State Leakage Current | 1 µA (Max) |
| Operating Supply Current | Typ: 30 µA to 32 µA |
| -3dB Bandwidth | 2.5 GHz |
| Input Signal Range | 0 V to 1.3 V |
| Operating Temperature | -40°C to +85°C |
| Package | 36-WLCSP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The FSA646UCX is a high‑speed 2‑to‑1 MIPI signal switch manufactured by onsemi, supplied in a compact 36‑ball WLCSP surface‑mount package with 0.4 mm pitch and shipped on tape‑and‑reel for high‑density portable device assembly. Optimized for both MIPI D‑PHY 2.5 Gbps four‑lane and MIPI C‑PHY 2.5 Gsps three‑lane signal routing, this SPDT analog multiplexer provides seamless switching between two camera or display data sources while preserving high‑speed signal integrity. Operating from a wide 1.5 V to 5.0 V single power‑supply rail, it delivers ultra‑low on‑resistance, minimal channel skew, low parasitic capacitance and excellent crosstalk suppression over the industrial temperature range of ‑40 °C to +85 °C, making it an ideal space‑saving solution for smartphones, tablets and embedded vision hardware that share one CSI‑2 or D‑PHY host port between multiple peripherals.
The FSA646UCX is widely adopted within portable consumer and embedded vision hardware to multiplex high‑speed serial interfaces, including multi‑camera switching for smartphone and tablet camera systems, MIPI DSI display port signal routing, CSI‑2 camera‑sharing circuits, wearable device image sensor interfaces, industrial compact vision modules, portable test equipment for MIPI signal validation, dual‑source high‑speed video data switching and other space‑constrained designs requiring shared MIPI host resources.
FAQ
Q: Can FSA646UCX switch both MIPI D‑PHY and C‑PHY signals?
A: Yes, this part is engineered to support both D‑PHY 4‑lane and C‑PHY 3‑lane standards for modern camera interfaces.
Q: Is extra power sequencing required for this MIPI switch?
A: No complicated sequencing is needed; the device can work normally once VCC stays between 1.5 V‑5.0 V.
Q: Can FSA646UCX switch both MIPI D‑PHY and C‑PHY signals?
A: Yes, this part is engineered to support both D‑PHY 4‑lane and C‑PHY 3‑lane standards for modern camera interfaces.
Q: Is extra power sequencing required for this MIPI switch?
A: No complicated sequencing is needed; the device can work normally once VCC stays between 1.5 V‑5.0 V.
Alternative analog multiplexer parts
● PI3DBS16215: Pericom high‑speed MIPI 2:1 switch, cross‑brand substitute for camera multiplexing with comparable bandwidth specifications.
● FSA246UCX: Compact low‑channel‑count MIPI switch, cost‑saving alternative for projects that only require fewer high‑speed lanes.
● TS3USB221: TI high‑speed differential signal multiplexer, general‑purpose alternative for low‑to‑medium‑rate serial data switching when strict MIPI compliance is not mandatory.
● PI3DBS16215: Pericom high‑speed MIPI 2:1 switch, cross‑brand substitute for camera multiplexing with comparable bandwidth specifications.
● FSA246UCX: Compact low‑channel‑count MIPI switch, cost‑saving alternative for projects that only require fewer high‑speed lanes.
● TS3USB221: TI high‑speed differential signal multiplexer, general‑purpose alternative for low‑to‑medium‑rate serial data switching when strict MIPI compliance is not mandatory.
