SI4463-B1B-FMR
Synchronous Buck ConverterThe SI4463-B1B-FMR is a synchronous buck converter from Silicon Laboratories. View the full SI4463-B1B-FMR datasheet below including pinout, electrical characteristics.
Manufacturer
Silicon Laboratories
Category
Synchronous Buck Converter
Package
QFN-20
Overview
Part: Si4463-B1B-FMR — Silicon Laboratories
Type: High-Performance, Low-Current Transceiver
Description: A high-performance, low-current transceiver covering sub-GHz frequency bands from 119 to 1050 MHz, offering -126 dBm receive sensitivity and up to +20 dBm output power, with low active power consumption (10/13 mA RX, 18 mA TX at +10 dBm for Si4460) and ultra-low powerdown modes.
Operating Conditions:
- Supply voltage: 1.8–3.6 V
- Frequency range: 119–1050 MHz
- Data rate: 100 bps to 1 Mbps
Key Specs:
- Supply Voltage Range (V DD): 1.8 V (Min), 3.3 V (Typ), 3.6 V (Max)
- RX Sensitivity (P RX_0.5): -126 dBm (BER < 0.1%, 500 bps, GFSK, BT = 0.5, f = 250Hz)
- TX Mode Current (I TX_+20, Si4464/63): 85 mA (+20 dBm, 915 MHz, 3.3 V)
- RX Mode Current (I RXH): 13.7 mA (High Performance Mode)
- Shutdown Current (I Shutdown): 30 nA (RC Oscillator, Main Digital Regulator, and Low Power Digital Regulator OFF)
- Synthesizer Frequency Range (F SYN, Si4463/61/60): 142–1050 MHz
- 1-Ch Offset Selectivity (C/I 1-CH, 169 MHz): -60 dB (12.5 kHz channel spacing)
- Blocking 1 MHz Offset (1M BLOCK): -75 dB
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)
- 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
- Highly configurable packet handler
- TX and RX 64 byte FIFOs
- Auto frequency control (AFC)
- Automatic gain control (AGC)
- Low battery detector
- Temperature sensor
- IEEE 802.15.4g compliant
Applications:
- Smart metering (802.15.4g & MBus)
- Remote keyless entry
- 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 package
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
Applications
- Smart metering (802.15.4g & MBus)
- Remote keyless entry
- Remote control
- Home security and alarm
- Telemetry
- Garage and gate openers
Pin Configuration
SI4463-B1B-FMR Pinout
Package: QFN-20 (with exposed paddle)
| Pin | Pin Name | Type | 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, chip is completely shut down and register contents are lost. |
| 2 | RXp | I | Differential RF Input Pin (LNA positive). See application schematic for matching network. |
| 3 | RXn | I | Differential RF Input Pin (LNA negative). See application schematic for matching network. |
| 4 | TX | O | Transmit Output Pin. PA output is open-drain; L-C match must supply VDD (+3.3 V nominal) to this pin. |
| 5 | NC | — | No Connect. Not connected internally. |
| 6 | VDD | P | +1.8 to +3.6 V Supply Voltage Input to Internal Regulators. Recommended: +3.3 V. |
| 7 | TXRAMP | O | Programmable Bias Output with Ramp Capability for External FET PA. |
| 8 | VDD | P | +1.8 to +3.6 V Supply Voltage Input to Internal Regulators. Recommended: +3.3 V. |
| 9 | GPIO0 | I/O | General Purpose Digital I/O. Configurable for Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low Battery Detect, TRSW, Ant Diversity control, etc. |
| 10 | GPIO1 | I/O | General Purpose Digital I/O. Configurable for Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low Battery Detect, TRSW, Ant Diversity control, etc. |
| 11 | nIRQ | O | General Microcontroller Interrupt Status Output. Pulled low (0) when interrupt event occurs. No external pull-up required, but may be desirable if multiple interrupt lines are connected. |
| 12 | SCLK | I | Serial Clock Input. 0-VDD V digital input. Provides serial data clock for 4-line serial data bus. Data clocked in on positive edge transitions. |
| 13 | SDO | O | Serial Data Output. 0-VDD V digital output. Provides serial readback of internal control registers. |
| 14 | SDI | I | Serial Data Input. 0-VDD V digital input. Provides serial data stream for 4-line serial data bus. |
| 15 | nSEL | I | Serial Interface Select Input. 0-VDD V digital input. Provides Select/Enable function for 4-line serial data bus. |
| 16 | XOUT | O | Crystal Oscillator Output. Connect to external 25–32 MHz crystal, or leave floating when driven by external source on XIN. |
| 17 | XIN | I | Crystal Oscillator Input. Connect to external 25–32 MHz crystal, or connect to external source. |
| 18 | GND | S | Connect to PCB ground. |
| 19 | GPIO2 | I/O | General Purpose Digital I/O. Configurable for Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low Battery Detect, TRSW, Ant Diversity control, etc. |
| 20 | GPIO3 | I/O | General Purpose Digital I/O. Configurable for Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low Battery Detect, TRSW, Ant Diversity control, etc. |
| PKG | PADDLE_GND | S | Exposed metal paddle on bottom of package. Supplies RF and circuit ground for entire chip. Critical: ensure good solder connection to PCB ground plane. |
Notes
- Pin diagram confirms all 20 numbered pins plus exposed ground paddle.
- VDD pins (6, 8) should be decoupled with appropriate capacitors per application schematic.
- nIRQ and nSEL are active-low signals (indicated by "n" prefix).
- GPIO0–GPIO3 are highly configurable; see register descriptions for specific function assignments.
- Crystal oscillator (XIN/XOUT) requires 25–32 MHz crystal or external clock source.
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.
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.
Ordering Information
| Part Number | Description | Package Type | Operating Temperature | Packing |
|---|---|---|---|---|
| Si4464-Bxx-FM | ISM EZRadioPRO Transceiver | QFN-20 Pb-free | -40 to 85 °C | null |
| Si4464-Bxx-FMR | ISM EZRadioPRO Transceiver | QFN-20 Pb-free | -40 to 85 °C | Tape and Reel |
| Si4463-Bxx-FM | ISM EZRadioPRO Transceiver | QFN-20 Pb-free | -40 to 85 °C | null |
| Si4463-Bxx-FMR | ISM EZRadioPRO Transceiver | QFN-20 Pb-free | -40 to 85 °C | Tape and Reel |
| Si4461-Bxx-FM | ISM EZRadioPRO Transceiver | QFN-20 Pb-free | -40 to 85 °C | null |
| Si4461-Bxx-FMR | ISM EZRadioPRO Transceiver | QFN-20 Pb-free | -40 to 85 °C | Tape and Reel |
| Si4460-Bxx-FM | ISM EZRadioPRO Transceiver | QFN-20 Pb-free | -40 to 85 °C | null |
| Si4460-Bxx-FMR | ISM EZRadioPRO Transceiver | QFN-20 Pb-free | -40 to 85 °C | Tape and Reel |
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| SI4460 | Silicon Laboratories | — |
| SI4461 | Silicon Laboratories | — |
| SI4463 | Silicon Laboratories | QFN-20 |
| SI4463-BXX-FM | Silicon Laboratories | — |
| SI4463/1/0 | Silicon Laboratories | — |
| SI4463/61 | Silicon Laboratories | — |
| SI4463/61/60 | Silicon Laboratories | — |
| SI4464 | Silicon Laboratories | — |
| SI446X | Silicon Laboratories | — |
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