Datasheet

PIC12F635/PIC16F636/639
DS41232D-page 100 © 2007 Microchip Technology Inc.
FIGURE 11-1: FUNCTIONAL BLOCK DIAGRAM – ANALOG FRONT-END
Configuration
To Tuning Cap X
To Tuning Cap Y
To Tuning Cap Z
To Modulation
V
SST
LCX
LCY
LCZ
LCCOM
Transistors
Registers
VDDT
To Sensitivity Z
To Sensitivity Y
To Sensitivity X
Modulation
Depth
AGC Preserve
LCCOM
Detector
Detector
Detector
CS LFDATA/RSSI/SCLK/ALERT
MCU
Command Decoder/Controller
Mod
Tune X
Output Enable
RF
Lim
LCCOM
Mod
Tune Y
RF
Lim
Mod
Tune Z
RF
Lim
32 kHZ
Oscillator
B
A
A
A
AGC
AGC
AGC
Sensitivity
Control X
Sensitivity
Control Y
Sensitivity
Control Z
Filter
AGC
Timer
RSSI
CCLK/SDIO
÷ 64
÷ 64
÷ 64
Σ
Watchdog
WAKEX
WAKEZ
WAKEY