u-blox Malmo AB 090202S 사용자 설명서

 

 

 

 

 

 

 

Version 0.4 Draft 1 - 2005-11 

17 

2.3 Characteristics 

The cB-0902 board is designed to be fully interchangeable. If the host product has space for 
the board it is possible to choose freely between a cB-OEMSPA312i/x or cB-OEMSPA332i/x 
device without any change of the host product. If you design your power supply for cB-
OEMSPA332i/x the modules will be fully interchangeable.  

The cB-0902 module has a linear power supply, which means that the current is constant if 
the voltage supply is changed. See Table 9. 

For more information about low power modes see Serial Port Adapter AT commands Speci-
fication. 

2.3.1 Power 

supply 

Min 3.0 

VDC 

VCC_3V3  Power supply (Unregulated*) 

Max 6.0 

VDC 

 

* The module is equipped with an internal linear voltage regulator. 

 

Average

7.9 mA 

Not connected 

 

Peak 48 

mA 

Average

1.0 mA 

Not connectable 

Peak 1.2 

mA 

Average

1.8 mA 

Connectable 

Peak 48 

mA 

Average

1.8 mA 

Not con-

nected, stop 

mode en-

abled 

Connectable, 

discoverable 

Peak 48 

mA 

Average

17 mA 

Idle or Receiving 

Peak 55 

mA 

Average

22 mA 

Connected 

Transmitting  

@115.2kbit/s 

Peak 58 

mA 

Average

39 mA 

I

CC

@ VCC_3V3 = 3.3V

 

 

Inquiry  

Peak 70 

mA 

I

RS232 Output

1

RS232  

Average

7 

mA 

R

RS232 load

2

RS232  

Typ 

20 

k

Ω 

1

 RS232 output signals TxD, RTS, DTR loaded with 3k

Ω. Not included in I

CC

, very dependent on the load. 

2

 Internal load on each RS232 input pin.