从l3g4200d升级到l3gd20.pdf

L3GD20 versus L3G4200D Application hints to upgrade to L3GD20 Upgrading your application . The L3GD20 is the latest generation of MEMS gyroscopes . The purpose of this presentation is to indicate how to upgrade your application from the L3G4200D to the L3GD20 External circuit requirements L3G4200D L3GD20 10 nF, 25 V class* Pin 14 Pin *1 nF min value must be guaranteed under 11 V bias condition Connection differences L3G4200D L3GD20 C1 10 nF 10 nF (25 V) * R2 10 kohm Not present C2 470 nF Not present Pin 14 Pin *1 nF min value must be guaranteed under 11 V bias condition Register differences . The L3G4200D and L3GD20 present the same register structure . The L3G4200D and L3GD20 have different WHO_AM_I and device slave addresses (I2C) L3GD20 L3G4200D . WHO_AM_I: . WHO_AM_I: . Slave address: 110101xx . Slave address: 110100xx