Si4463
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the Si4463 family does
The Si446x family comprises high-performance, low-current transceivers spanning the Si4460, Si4461, Si4463, and Si4464 variants. These devices operate across 119 to 1050 MHz with a receive sensitivity of –126 dBm and support data rates from 100 bps to 1 Mbps. Output power ranges from +13 dBm for the Si4460 up to +20 dBm for the Si4463 and Si4464, with PA support reaching +27 or +30 dBm. The Si446x supports (G)FSK, 4(G)FSK, (G)MSK, and OOK modulation schemes. Engineers typically deploy these transceivers in smart metering, home automation, industrial control, and sensor network applications. The parts feature excellent selectivity, fast wake times, and compliance with 802.15.4g and MBus standards.
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Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.
Ordering code:
Si4463 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| supply voltage range | 1.8 V | 3.3 V | 3.6 V | DC Characteristics $ ^{1} $ | SiliconLabs datasheet, p. 4 — Table 1. DC Characteristics |
| operating temperature | -40 °C | — | 85 °C | SiliconLabs datasheet, p. 48 — 10. Ordering Information | |
| input capacitance | — | 2 pF | — | Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL, nIRQ, SDN) $ ^{1} $ | SiliconLabs datasheet, p. 12 — Table 6. Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL… |
| operating frequency | 850 MHz | — | 1.05 GHz | rx(si4463/61/60); Receiver AC Electrical Characteristics $ ^{1} $ | SiliconLabs datasheet, p. 6 — Table 3. Receiver AC Electrical Characteristics |
| data rate | 100 bps | — | 500 kbps | (g); Transmitter AC Electrical Characteristics | SiliconLabs datasheet, p. 9 — Table 4. Transmitter AC Electrical Characteristics |
| output power | 19 dBm | 20 dBm | 21 dBm | At 20 dBm PA power setting, 915 MHz, Class E match, 3.3 V, 25 °C; (si4463); Transmitter AC Electrical Characteristics | SiliconLabs datasheet, p. 10 — Table 4. Transmitter AC Electrical Characteristics (Continued) |
| sensitivity | — | -126 dBm | — | (BER < 0.1%)(500 bps, GFSK, BT = 0.5, Δf = ±250Hz)3; rx; Receiver AC Electrical Characteristics $ ^{1} $ | SiliconLabs datasheet, p. 7 — Table 3. Receiver AC Electrical Characteristics (Continued) |
| fall time | — | 2 ns | — | 0.9 x VDDto 0.1 x VDD, CL = 10 pF, DRV<1:0> = HH; Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL, nIRQ, SDN) $ ^{1} $ | SiliconLabs datasheet, p. 12 — Table 6. Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL… |
| settling time | — | 50 µs | — | Measured from exiting Ready mode with XOSC running to any frequency. Including VCO Calibration.; Synthesizer AC Electrical Characteristics | SiliconLabs datasheet, p. 5 — Table 2. Synthesizer AC Electrical Characteristics |
Si4460 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| supply voltage range | 1.8 V | 3.3 V | 3.6 V | DC Characteristics $ ^{1} $ | SiliconLabs datasheet, p. 4 — Table 1. DC Characteristics |
| operating temperature | -40 °C | — | 85 °C | SiliconLabs datasheet, p. 48 — 10. Ordering Information | |
| input capacitance | — | 2 pF | — | Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL, nIRQ, SDN) $ ^{1} $ | SiliconLabs datasheet, p. 12 — Table 6. Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL… |
| operating frequency | 850 MHz | — | 1.05 GHz | rx; Receiver AC Electrical Characteristics $ ^{1, 2} $ | SiliconLabs datasheet, p. 6 — Table 3. Receiver AC Electrical Characteristics |
| data rate | 100 bps | — | 500 kbps | (g); Transmitter AC Electrical Characteristics | SiliconLabs datasheet, p. 9 — Table 4. Transmitter AC Electrical Characteristics |
| output power | 9 dBm | 10 dBm | 11 dBm | At 10 dBm PA power setting, 915 MHz, Class E match, 3.3 V, 25 °C; (si4460); Transmitter AC Electrical Characteristics | SiliconLabs datasheet, p. 10 — Table 4. Transmitter AC Electrical Characteristics (Continued) |
| sensitivity | — | -126 dBm | — | (BER < 0.1%)(500 bps, GFSK, BT = 0.5, Δf = ±250Hz)3; rx; Receiver AC Electrical Characteristics $ ^{1} $ | SiliconLabs datasheet, p. 7 — Table 3. Receiver AC Electrical Characteristics (Continued) |
| rise time | — | 2.3 ns | — | 0.1 x VDDto 0.9 x VDD, CL = 10 pF, DRV<1:0> = HH; Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL, nIRQ, SDN) $ ^{1} $ | SiliconLabs datasheet, p. 12 — Table 6. Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL… |
| fall time | — | 2 ns | — | 0.9 x VDDto 0.1 x VDD, CL = 10 pF, DRV<1:0> = HH; Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL, nIRQ, SDN) $ ^{1} $ | SiliconLabs datasheet, p. 12 — Table 6. Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL… |
| operate time | — | — | 5 ms | por; Auxiliary Block Specifications $ ^{1} $ | SiliconLabs datasheet, p. 11 — Table 5. Auxiliary Block Specifications |
| settling time | — | 50 µs | — | Measured from exiting Ready mode with XOSC running to any frequency. Including VCO Calibration.; Synthesizer AC Electrical Characteristics | SiliconLabs datasheet, p. 5 — Table 2. Synthesizer AC Electrical Characteristics |
Si4461 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| supply voltage range | 1.8 V | 3.3 V | 3.6 V | DC Characteristics $ ^{1} $ | SiliconLabs datasheet, p. 4 — Table 1. DC Characteristics |
| operating temperature | -40 °C | — | 85 °C | SiliconLabs datasheet, p. 48 — 10. Ordering Information | |
| input capacitance | — | 2 pF | — | Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL, nIRQ, SDN) $ ^{1} $ | SiliconLabs datasheet, p. 12 — Table 6. Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL… |
| operating frequency | 850 MHz | — | 1.05 GHz | rx; Receiver AC Electrical Characteristics $ ^{1, 2} $ | SiliconLabs datasheet, p. 6 — Table 3. Receiver AC Electrical Characteristics |
| data rate | 100 bps | — | 500 kbps | (g); Transmitter AC Electrical Characteristics | SiliconLabs datasheet, p. 9 — Table 4. Transmitter AC Electrical Characteristics |
| output power | — | 16 dBm | — | SiliconLabs datasheet, p. 2 — Functional Block Diagram | |
| sensitivity | — | -126 dBm | — | (BER < 0.1%)(500 bps, GFSK, BT = 0.5, Δf = ±250Hz)3; rx; Receiver AC Electrical Characteristics $ ^{1} $ | SiliconLabs datasheet, p. 7 — Table 3. Receiver AC Electrical Characteristics (Continued) |
| rise time | — | 2.3 ns | — | 0.1 x VDDto 0.9 x VDD, CL = 10 pF, DRV<1:0> = HH; Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL, nIRQ, SDN) $ ^{1} $ | SiliconLabs datasheet, p. 12 — Table 6. Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL… |
| fall time | — | 2 ns | — | 0.9 x VDDto 0.1 x VDD, CL = 10 pF, DRV<1:0> = HH; Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL, nIRQ, SDN) $ ^{1} $ | SiliconLabs datasheet, p. 12 — Table 6. Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL… |
| operate time | — | — | 5 ms | por; Auxiliary Block Specifications $ ^{1} $ | SiliconLabs datasheet, p. 11 — Table 5. Auxiliary Block Specifications |
| settling time | — | 50 µs | — | Measured from exiting Ready mode with XOSC running to any frequency. Including VCO Calibration.; Synthesizer AC Electrical Characteristics | SiliconLabs datasheet, p. 5 — Table 2. Synthesizer AC Electrical Characteristics |
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