USGlobalsat EB-5662RE - Manual (Page 8)

EB-5662RE
High Performance GPS Engine Board
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GPS Active Antenna Specifications (Recommendation)
Frequency: 1575.42 + 2MHz Amplifier Gain: 18~22dB Typical
Axial Ratio: 3 dB Typical Output VSWR: 2.0 Max.
Output Impedance: 50Ω Noise Figure: 2.0 dB Max
Polarization: RHCP Antenna Input Voltage: 2.85V (Typ.)
NOTE:
1. RESET: Low Active, when EB-5662RE is accepted this single, EB-5662RE going to Hibernate
mode. If want EB-5662RE up, need input ON_OFF single.
2. TIMEPLUSE: One pulse per second output. When EB-5662RE is 3D Fixed, this pin will output
1uS Hi level pulse. If don
’t use this, just NC.
3. WAKE_UP: EB-5662RE power on, WAKE_UP will output 1.8V.
4. ON_OFF: This pin is controlled EB-5662RE power on. If EB-5662RE want to EB-662 pin to pin
compactable, please ON_OFF connect to WAKE_UP. If don ’t use this, just NC.
5. DR I2C interface: The I2C interface supports required sensor instruments such as gyros,
accelerometers, compasses or other sensors that can operate with an I2C bus. If don ’t use
this, just NC.
6. VBAT: This is the battery backup power input for the SRAM and RTC when main power is
removed. VBAT is 2V ~ 3.5V.
7. EB-5662RE RF is has 3.3V external POWER to active ANTENNA use.