EVB7122
27 to 930MHz Transceiver
Evaluation Board Description
4.3
ASK Application Circuit with Peak Detector Option
2 1
4 3 2 1
RS2
RS3
RE/SCLK
ASK/FSK
4 3 2 1
CB0
RS1
TE/SDTA
FS0/SDEN
FS1/LD
12 3
12 3
12 3
12 3
12 3
CB7
RE/SCLK
15
VCC_DIG
14
ASK/FSK
13
FSK_SW
11
IN_DTA
12
RO
10
VEE_RO
16
9
FS0/SDEN
17
RSSI
GND
OUT_DEM
GND
4 3 2 1
CX1
XTAL
OUT_DTA
8
RSSI
7
OUT_DEM
6
VCC
GND
IN_DTA
GND
OUT_DTA
GND
GND
SDTA
SDEN
SCLK
CB6
C0
L0
CF1
CF2
RF
RPS
CPS
18
VEE_DIG
19
FS1/LD
20
VCC_PLL
21
TNK_LO
22
VEE_PLL
23
LF
29
GAIN_LNA
27
VEE_LNA
25
OUT_PA
26
IN_LNA
30
IN_MIX
31
VEE_IF
24
28
OUT_LNA
C5
R2
R1
CB5
C6
TH7122
INT1
5
INT2/PDO
4
IN_DEM
3
VCC_IF
2
32
OUT_MIX
IN_IFA
1
CTX4
LTX0
CTX1
CTX2
RL0
CERFIL
CB2
CTX0
LRX2
LTX1
CRX0
C2
C1
L1
CB1
VCC
50
TX_OUT
RX_IN
Software Settings for ASK
Channel
frequency
315.00 MHz
434.00 MHz
915.00 MHz
f
RO
= 8.0000MHz
RR
80
80
80
NR
3043
4233
9043
RT
8
8
8
NT
315
434
915
CPCUR
RX
260µA
260µA
260µA
TX
1300µA
1300µA
1300µA
VCOCUR
RX
300 µA
300 µA
300 µA
TX
900µA
900µA
900µA
39012 07122 02
Rev. 005
Page 19 of 24
VCC
RB1
EVB Description
June/07
MELEXIS [ Melexis Microelectronic Systems ]
