BK1662 is a fully integrated single-chip L1/L5 dual band GNSS solution designed specifically for applications that require low power consumption and high performance. BK1662 significantly improves real-world positioning and TTFF performance through optimized multi band and multi-mode signal tracking, advanced anti multipath technology, and anti-interference RF front-end.
BK1662 adopts advanced firmware and low-power hardware design. It provides ultra-low power consumption without affecting performance.
BK1662 has low power consumption and high performance, making it an ideal choice for many different applications, especially wearable IoT, global navigation satellite system modules, trackers, drones, and car navigation.
Characteristics
Global Navigation Satellite System
200 tracking channels with fast search engines
• Supports GPS L1, Beidou B1, Galileo E1, QZSS L1, GLONASS G1
Support GPS L5, Beidou B2A, Galileo E5, QZSS L5, IRNSS
Cold collection sensitivity: -148 dBm
Thermal collection sensitivity: -159 dBm
Recapture sensitivity: -159 dBm
Tracking sensitivity: -163 dBm
Update rate: 1~25 Hz
Horizontal position accuracy: 1.5 m CEP
• Cold TTFF: 28 seconds
AGPS TTFF: 1.5 seconds
Hot TTFF: 1.0 seconds
• Support SBAS
• Support for Global Positioning System
Support batch data reporting mode
• Supports NMEA0183
Kernel and memory
32-bit DSP with frequencies up to 350 MHz
• Single and double floating-point support
Embedded flash memory
Random Access Memory/Read Only Memory
• 32 KB cache
256 bit efuse
UART/JTAG for downloading and debugging
Clock management
External oscillator: 26 MHz TCXO
Internal oscillator: 26 MHz crystal oscillator (X26M), 32 kHz crystal oscillator (X32K), and ring oscillator (ROSC32K)
350 MHz phase-locked loop
energy management
2.8 to 4.2 V VBAT power supply
On chip power on reset (POR) and power off detector (BOD)
Embedded LDO voltage regulator
Embedded DC-DC converter
Low power consumption:
-Continuous L1/L5 mode: 20mA
-Continuous L1 mode: 12mA
-Sleep mode: 22 μ A
Peripheral
17 GPIOs
3 UARTs, 1 supporting flash download
• 1 I2C
• 1 SPI
10 bit SAR ADC, 1 channel
1 watchdog
2 universal 32-bit timers/counters
1 low-power RTC timer
1 temperature sensor
Encapsulation
QFN40 package, 5mm x 5mm
Working temperature range: -40 to+105 ° C