SI4460
TransceiverThe SI4460 is a transceiver from Silicon Labs. View the full SI4460 datasheet below including key specifications, electrical characteristics.
SI4460 shares its datasheet with SI4463-B1B-FMR, whose page lists every part number it covers.
Official SI4460 datasheet (PDF) — the source this page was extracted from.
SI4460 Key Specifications
| Parameter | Value |
|---|---|
| FIFO | 64 byte TX and RX FIFOs |
| Blocking | 79 dB at 1 MHz |
| Data Rate | 100 bps to 1 Mbps |
| Interface | SPI |
| Modulation | (G)FSK, 4(G)FSK, (G)MSK, OOK |
| RX Current | 10 mA to 13 mA |
| Supply Voltage | 1.8V to 3.8V |
| Frequency Range | 142 MHz to 1050 MHz |
| Standby Current | 40 nA |
| Shutdown Current | 30 nA |
| Receive Sensitivity | -129 dBm |
| TX Current (Si4460) | 18 mA at +10 dBm; 24 mA at +13 dBm (868 MHz) |
| Standards Compliance | IEEE 802.15.4g, WMBus |
| Operating Temperature | -40°C to +85°C |
| Max Output Power (Si4460) | +13 dBm |
| Adjacent Channel Selectivity | 69 dB |
SI4460 Overview
Part: Si4463/61/60/64 (Si4463-B1B-FMR) — Silicon Laboratories
Type: Sub-GHz ISM Transceiver (EZRadioPRO)
Description: 119–1050 MHz high-performance, low-current sub-GHz transceiver with -126 dBm receive sensitivity, up to +20 dBm output power, and 1.8–3.6 V supply.
Operating Conditions:
- Supply voltage: 1.8–3.6 V (3.3 V typical)
- Frequency range: 119–1050 MHz (Si4464: 119–960 MHz; Si4463/61/60: 142–1050 MHz)
- Data rate: 100 bps to 1 Mbps
Key Specs:
- Shutdown current: 30 nA typ; standby current: 50 nA typ
- RX current: 13.7 mA (high performance mode), 10.7 mA (low power mode)
- TX current (Si4464/63): 85 mA at +20 dBm, 915 MHz, 3.3 V
- TX current (Si4460): 18 mA at +10 dBm, 868 MHz, 3.3 V
- RX sensitivity: -126 dBm (500 bps, GFSK, BER < 0.1%); -110 dBm (40 kbps); -106 dBm (100 kbps)
- Blocking at 1 MHz offset: -75 dB typ; 8 MHz offset: -84 dB typ
- Synthesizer settling time: 50 μs typ
- Image rejection: 55 dB typ with calibration
Features:
- Modulation: (G)FSK, 4(G)FSK, (G)MSK, OOK
- Max output power: +20 dBm (Si4464/63), +16 dBm (Si4461), +13 dBm (Si4460)
- PA support for +27 or +30 dBm
- 64-byte TX and RX FIFOs with configurable packet handler
- Auto frequency control (AFC) and automatic gain control (AGC)
- Antenna diversity and T/R switch control
- Low battery detector and temperature sensor
- IEEE 802.15.4g compliant; supports FCC, ETSI, ARIB regulatory standards
Applications:
- Smart metering (802.15.4g & MBus)
- Remote keyless entry and remote control
- Home security and alarm
- Telemetry
- Garage and gate openers
- Home automation
- Industrial control
- Sensor networks
- Health monitors
- Electronic shelf labels
Package:
- 20-pin QFN
SI4460 Features
-
Frequency range = 119-1050 MHz
-
Receive sensitivity = -126 dBm
-
Modulation
-
(G)FSK, 4(G)FSK, (G)MSK
-
OOK
-
Max output power
-
+20 dBm (Si4464/63)
-
+16 dBm (Si4461)
-
+13 dBm (Si4460)
-
PA support for +27 or +30 dBm
-
Low active power consumption
-
10/13 mA RX
-
18 mA TX at +10 dBm (Si4460)
-
Ultra low current powerdown modes
-
30 nA shutdown, 50 nA standby
-
Data rate = 100 bps to 1 Mbps
-
Fast wake and hop times
-
Power supply = 1.8 to 3.6 V
-
Excellent selectivity performance
-
60 dB adjacent channel
-
75 dB blocking at 1 MHz
-
Antenna diversity and T/R switch control
-
Highly configurable packet handler
-
TX and RX 64 byte FIFOs
-
Auto frequency control (AFC)
-
Automatic gain control (AGC)
-
Low BOM
-
Low battery detector
-
Temperature sensor
-
20-Pin QFN package
-
IEEE 802.15.4g compliant
-
FCC Part 90 Mask D, FCC part 15.247, 15,231, 15,249, ARIB T-108, T-96, T-67, RCR STD-30, China regulatory
-
ETSI Class-I Operation with SAW
SI4460 Applications
- Smart metering (802.15.4g & MBus)
- Remote keyless entry
- Remote control
- Home security and alarm
- Telemetry
- Garage and gate openers
SI4460 Pin Configuration
| Pin | Pin Name | I/0 | Description |
|---|---|---|---|
| 1 | SDN | I | Shutdown Input Pin . 0-VDD V digital input. SDN should be = 0 in all modes except Shutdown mode. When SDN = 1, the chip will be completely shut down, and the contents of the registers will be lost. |
| 2 | RXp | I | Differential RF Input Pins of the LNA. See application schematic for example matching network. |
| 3 | RXn | I | Differential RF Input Pins of the LNA. See application schematic for example matching network. |
| 4 | TX | O | Transmit Output Pin. The PA output is an open-drain connection, so the L-C match must supply VDD (+3.3 VDC nominal) to this pin. |
| 5 | NC | No Connect. Not connected internally to any circuitry. | |
| 6 | VDD | VDD | +1.8 to +3.6 V Supply Voltage Input to Internal Regulators. The recommended VDD supply voltage is +3.3 V. |
| 7 | TXRAMP | O | Programmable Bias Output with Ramp Capability for External FET PA. See "5.4. Transmitter (TX)" on page 34. |
| 8 | VDD | VDD | +1.8 to +3.6 V Supply Voltage Input to Internal Regulators. The recommended VDD supply voltage is +3.3 V. |
| 9 | GPIO0 | I/O | General Purpose Digital I/O. May be configured through the registers to perform various functions Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low Battery |
| 10 | GPIO1 | I/O | including: Detect, TRSW, AntDiversity control, etc. |
| 11 | nIRQ | O | General Microcontroller Interrupt Status Output. When the Si4463/61 exhibits any one of the interrupt events, the nIRQ pin will be set low = 0. The Microcontroller can then determine the state of the inter- rupt by reading the interrupt status. No external resistor pull-up is required, but it may be desirable if multiple interrupt lines are connected. |
| Pin | Pin Name | I/0 | Description |
| 12 | SCLK | I | Serial Clock Input. 0-VDD V digital input. This pin provides the serial data clock function for the 4-line serial data bus. Data is clocked into the Si4463/61 on positive edge tran- sitions. |
| 13 | SDO | O | 0-VDD V Digital Output. Provides a serial readback function of the internal control registers. |
| 14 | SDI | I | Serial Data Input. 0-VDD V digital input. This pin provides the serial data stream for the 4-line serial data bus. |
| 15 | nSEL | I | Serial Interface Select Input. 0-VDD V digital input. This pin provides the Select/Enable function for the 4-line serial data bus. |
| 16 | XOUT | O | Crystal Oscillator Output. Connect to an external 25 to 32 MHz crystal, or leave floating when driving with an external source on XIN. |
| 17 | XIN | I | Crystal Oscillator Input. Connect to an external 25 to 32 MHz crystal, or connect to an external source. |
| 18 | GND | GND | Connect to PCB ground. |
| 19 | GPIO2 | I/O | General Purpose Digital I/O. May be configured through the registers to perform various functions, including Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low Battery |
| 20 | GPIO3 | I/O | Detect, TRSW, AntDiversity control, etc. |
| PKG | PADDLE_GND | GND | The exposed metal paddle on the bottom of the Si446x supplies the RF and cir- cuit ground(s) for the entire chip. It is very important that a good solder connec- tion is made between this exposed metal paddle and the ground plane of the PCB underlying the Si446x. |
SI4460 Electrical Characteristics
Table 1. DC Characteristics 1
| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage Range | V DD | 1.8 | 3.3 | 3.6 | V | |
| Power Saving Modes | I Shutdown | RC Oscillator, Main Digital Regulator, and Low Power Digital Regulator OFF | - | 30 | - | nA |
| Power Saving Modes | I Standby | Register values maintained and RC oscillator/WUT OFF | - | 50 | - | nA |
| Power Saving Modes | I SleepRC | RC Oscillator/WUT ON and all register values main- tained, and all other blocks OFF | - | 900 | - | nA |
| Power Saving Modes | I SleepXO | Sleep current using an external 32 kHz crystal. 2 | - | 1.7 | - | μA |
| Power Saving Modes | I Sensor -LBD | Low battery detector ON, register values maintained, and all other blocks OFF | - | 1 | - | μA |
| Power Saving Modes | I Ready | Crystal Oscillator and Main Digital Regulator ON, all other blocks OFF | - | 1.8 | - | mA |
| TUNE Mode Current | I Tune_RX | RX Tune, High Performance Mode | - | 7.2 | - | mA |
| TUNE Mode Current | I Tune_TX | TX Tune, High Performance Mode | - | 8 | - | mA |
| RX Mode Current | I RXH | High Performance Mode | - | 13.7 | - | mA |
| RX Mode Current | I RXL | Low Power Mode 2 | - | 10.7 | - | mA |
| TX Mode Current (Si4464/63) | I TX_+20 | +20 dBm output power, class-E match, 915 MHz, 3.3 V | - | 85 | - | mA |
| TX Mode Current (Si4464/63) | I TX_+20 | +20 dBm output power, class-E match, 460 MHz, 3.3 V | - | 75 | - | mA |
| TX Mode Current (Si4464/63) | I TX_+20 | +20 dBm output power, square-wave match, 169 MHz, 3.3 V | - | 70 | - | mA |
| TX Mode Current (Si4461) | I TX_+16 | +16 dBm output power, class-E match, 868 MHz, 3.3 V 2 | - | 43 | - | mA |
| TX Mode Current (Si4461) | I TX_+14 | +14 dBm output power, Switched-current match, 868 MHz, 3.3 V 2 | - | 37 | - | mA |
| TX Mode Current (Si4461) | I TX_+13 | +13 dBm output power, switched-current match, 868 MHz, 3.3 V 2 | - | 29 | - | mA |
| TX Mode Current (Si4460) | I TX_+10 | +10 dBm output power, Class-E match, 868 MHz, 3.3 V 2 | - | 18 | - | mA |
Notes:
-
All specifications guaranteed by production test unless otherwise noted. Production test conditions and max limits are listed in the "Production Test Conditions" section of "1.1. Definition of Test Conditions" on page 14.
-
Guaranteed by qualification. Qualification test conditions are listed in the 'Qualification Test Conditions' section in "1.1. Definition of Test Conditions" on page 14.
Table 2. Synthesizer AC Electrical Characteristics 1
| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Synthesizer Frequency Range (Si4463/61/60) | F SYN | 850 | - | 1050 | MHz | |
| Synthesizer Frequency Range (Si4463/61/60) | 420 | - | 525 | MHz | ||
| Synthesizer Frequency Range (Si4463/61/60) | 284 | - | 350 | MHz | ||
| Synthesizer Frequency Range (Si4463/61/60) | 142 | - | 175 | MHz | ||
| Synthesizer Frequency Range (Si4464) | F SYN | 705 | - | 960 | MHz | |
| Synthesizer Frequency Range (Si4464) | 353 | - | 639 | MHz | ||
| Synthesizer Frequency Range (Si4464) | 177 | - | 319 | MHz | ||
| Synthesizer Frequency Range (Si4464) | 119 | - | 159 | MHz | ||
| Synthesizer Frequency Resolution 3 | F RES-960 | 850-1050 MHz | - | 28.6 | - | Hz |
| Synthesizer Frequency Resolution 3 | F RES-525 | 420-525 MHz | - | 14.3 | - | Hz |
| Synthesizer Frequency Resolution 3 | F RES-350 | 283-350 MHz | - | 9.5 | - | Hz |
| Synthesizer Frequency Resolution 3 | F RES-175 | 142-175 MHz | - | 4.7 | - | Hz |
| Synthesizer Frequency Resolution (Si4464) 3 | F RES-960 | 705-960 MHz | - | 28.6 | - | Hz |
| Synthesizer Frequency Resolution (Si4464) 3 | F RES-639 | 470-639 MHz | - | 19.1 | - | Hz |
| Synthesizer Frequency Resolution (Si4464) 3 | F RES-479 | 353-479 MHz | - | 14.3 | - | Hz |
| Synthesizer Frequency Resolution (Si4464) 3 | F RES-319 | 235-319 MHz | - | 9.5 | - | Hz |
| Synthesizer Frequency Resolution (Si4464) 3 | F RES-239 | 177-239 MHz | - | 7.1 | - | Hz |
| Synthesizer Frequency Resolution (Si4464) 3 | F RES-159 | 119-159 MHz | - | 4.7 | - | Hz |
| Synthesizer Settling Time 4 | t LOCK | Measured from exiting Ready mode with XOSC running to any frequency. Including VCO Calibration. | - | 50 | - | μs |
| Phase Noise 4 | L (f M ) | F = 10 kHz, 460 MHz, High Perf Mode | - | -106 | - | dBc/Hz |
| Phase Noise 4 | F = 100 kHz, 460 MHz, High Perf Mode | - | -110 | - | dBc/Hz | |
| Phase Noise 4 | F = 1 MHz, 460 MHz, High Perf Mode | - | -123 | - | dBc/Hz | |
| Phase Noise 4 | F = 10 MHz, 460 MHz, High Perf Mode | - | -130 | - | dBc/Hz |
- All specification guaranteed by production test unless otherwise noted. Production test conditions and max limits are listed in the 'Production Test Conditions' section in "1.1. Definition of Test Conditions" on page 14.
- For applications that use the major bands covered by Si4463/61/60, customers should use those parts instead of Si4464.
- Default API setting for modulation deviation resolution is double the typical value specified.
- Guaranteed by qualification. Qualification test conditions are listed in the "Qualification Test Conditions" section in "1.1. Definition of Test Conditions" on page 14.
SI4460 Package Information
Figure 20 illustrates the package details for the Si446x. Table 17 lists the values for the dimensions shown in the illustration.
Figure 20. 20-Pin Quad Flat No-Lead (QFN)
Table 17. Package Dimensions
| Dimension | Min | Nom | Max |
|---|---|---|---|
| A | 0.80 | 0.85 | 0.90 |
| A1 | 0.00 | 0.02 | 0.05 |
| A3 | 0.20 REF | 0.20 REF | 0.20 REF |
| b | 0.18 | 0.25 | 0.30 |
| D | 4.00 BSC | 4.00 BSC | 4.00 BSC |
| D2 | 2.45 | 2.60 | 2.75 |
| e | 0.50 BSC | 0.50 BSC | 0.50 BSC |
| E | 4.00 BSC | 4.00 BSC | 4.00 BSC |
| E2 | 2.45 | 2.60 | 2.75 |
| L | 0.30 | 0.40 | 0.50 |
| aaa | 0.15 | 0.15 | 0.15 |
| bbb | 0.15 | 0.15 | 0.15 |
| ccc | 0.10 | 0.10 | 0.10 |
| ddd | 0.10 | 0.10 | 0.10 |
| eee | 0.08 | 0.08 | 0.08 |
- All dimensions are shown in millimeters (mm) unless otherwise noted.
- Dimensioning and tolerancing per ANSI Y14.5M-1994.
- This drawing conforms to the JEDEC Solid State Outline MO-220, Variation VGGD-8.
- Recommended card reflow profile is per the JEDEC/IPC J-STD-020C specification for Small Body Components.
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| SI4461 | Silicon Labs | QFN-20 |
| SI4463 | Silicon Labs | QFN-20 |
| SI4463-B1B-FMR | Silicon Labs | QFN-20 |
| SI4463/1/0 | Silicon Labs | QFN-20 |
| SI4463/61 | Silicon Labs | QFN-20 |
| SI4463/61/60 | Silicon Labs | QFN-20 |
| SI4464 | Silicon Labs | QFN-20 |
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