Synergy Tier-1 distributor Jarwey｜SY2325 vs SY2326 32-channel SPST HV switch
Jarwey is a Tier-1 distributor of Synergy (Xinlijie) medical ultrasound ICs—selection support, datasheets, samples and small lots, lead-time coordination.
Once the probe mux is locked as per-channel SPST, the remaining split is not “MUX versus switch.” That question sits in the SY2320 / SY2322 2:1 MUX note. Here the question is narrower: between SY2325 and SY2326, which limit hits first—logic voltage, shift clock, or package.
Both parts target medical ultrasound, NDT, piezo drive, and optical MEMS. Public listings put the analog window near 0V to ±100V, control from a +5V rail, an on-chip bleed near 40kΩ, and 5MHz off-isolation / crosstalk near −57dB / −60dB. Those rows match closely enough that they will not pick the part. The rows that do are below. Treat every number as datasheet-bound.
Where SY2325 and SY2326 actually diverge
| Check | SY2325 | SY2326 |
|---|---|---|
| Function | 32-ch HV switch, shift register plus latch, independent channel control | 32-ch SPST HV switch, independent channel control |
| Logic IO | 3V–5V CMOS | 1.8V–5V CMOS |
| Shift clock | about 20MHz | about 50MHz |
| 32-bit shift, order of magnitude | ~1.6μs before latch (timing diagram rules) | ~0.64μs before latch (timing diagram rules) |
| Package | 84-lead LGA | 84-lead QFN |
| Product page | 859 | 860 |
A Hitachi HDL6M06522B-class 32-ch SPST is a cross-check candidate only. Supply, timing, bleed, and footprint still need a datasheet pass and a board measurement. Nothing here is a drop-in claim.
Pick the constraint that is already fixed
If the FPGA bank is 1.8V, start with SY2326. SY2325’s listed logic window begins at 3V, so a 1.8V bank implies a level translator or a different IO rail. A 3.3V or 5V bank can shortlist both.
If the pattern must reload inside a short TX gap, compare shift time before you compare packages. Thirty-two clocks at 20MHz land near 1.6μs; at 50MHz near 0.64μs. Latch and LEB/CLR sit on top of that. A tight gap points at SY2326. A loose gap plus an LGA-capable line points at SY2325.
Off-isolation numbers will not separate them. Receive noise depends on whether the 40kΩ bleed clears probe capacitance, and whether charge injection stays inside the front-end budget. Read those curves on the datasheet, then measure them.
Seven checks before the BOM locks
- Topology: independent on/off per channel. A 2:1 mux belongs on SY2320FN / SY2322.
- Logic voltage: 1.8V → SY2326. 3.3V or 5V → both stay on the shortlist.
- Reload time: 20MHz vs 50MHz against the TX gap, with latch margin called out separately.
- Package: 84-LGA vs 84-QFN against stencil, inspection, and rework.
- Analog window: probe voltage inside 0V to ±100V, and a clean +5V control rail.
- Bleed and injection: 40kΩ bleed, isolation, crosstalk, and charge injection versus the real probe C.
- Samples: download the datasheet from the product page; ask Jarwey for lot size and lead time before the PN is frozen.
Datasheets on the product pages
Jarwey · Synergy Tier-1 distributor · kerry.w@jarwey.cn · Contact.
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