U3600BM Datasheet, PDF (2/43 Pages) ATMEL Corporation – SINGLE CHIP CORDLESS TELEPHONE IC

Figure 1. Block Diagram
MIX1IN2
GNDLO
41
42
OSCGND
MIX2O
MIX2IN
MIX1IN1 MIX1O
XCK VAF
MIX2GND
40
39 38 37
36
35
34
33
Mixer1
Crystal
Oscillator
Mixer2
IFIN1
32
43
LO2
44
LO1
1
PCLO 1
f _LO
VCO3 :2
f _{LO :N}
f _Ref3
:K
fLO
sin cos
(3)
Phase
Comparator
Serial
Bus
Bias
Bat low
Detector
IFIN2
31
IF
Amp
RSSI
ETC
30
MUXDA
D
A
-+
EXIN
29
Expander
Ear
Amp
28
RECO1
RECO2
27
Demo-
dulator
26
RXO
+
DATRX
-
25
DAIN
2
RFOGND
RFO ³
4
RFOVB
MixerT
+45
-45
(2)
VCO2
Loop
Filter
5
6
7
:D1
:M12
:D2
:M12
f _Ref2
Phase
Comparator
(1)
:2
:D3
:10
f _Mod
:M
:2
fRef1
VCO1
Phase
Comparator
9 10
8
11 12 13
1.5V
24
-
Mic
+ VRMIC
23
MIC
MICO
22
Compressor
21
20
COIN
CTC
COUT
+
Spl
Amp-
1.5V
Limiter
19
LIMIN
14 15 16 ₁₇
18
AGND
VBIAS VRF
MLF LFGND MODIN
VDD VSS D _C
OPOUT
TXO
DACO
OPIN
(1): PLL1: Modulator PLL
(2): PLL2: Mixer PLL
(3): PLL3: Local oscillator (LO) PLL
2 U3600BM
4516C–CT0–08/02