EVB7122 Datasheet, PDF (19/24 Pages) Melexis Microelectronic Systems – 27 to 930MHz Transceiver Evaluation Board Description

EVB7122
27 to 930MHz Transceiver
Evaluation Board Description
4.3 ASK Application Circuit with Peak Detector Option
21
4 3 21
CB0
RS2
RS1
RS3
4 3 21
CB7
4321
CX1
XTAL
FS0/SDEN
17
CB6
C0
L0
CF1
RF
18 VEE_DIG
19 FS1/LD
20 VCC_PLL
21 TNK_LO
22 VEE_PLL
CF2
RPS
23 LF
24
TH7122
OUT_DTA 8
C5
RSSI 7
OUT_DEM 6
R2
INT1 5
INT2/PDO 4
R1
IN_DEM 3
CB5
C6
VCC_IF 2
IN_IFA 1
CPS
CTX4
RL0
CB2
LTX0
CTX0
C2
CRX0
LRX2
C1
CERFIL
CTX1
LTX1
CTX2
RB1
L1
CB1
TX_OUT
50
RX_IN
Software Settings for ASK
Channel
frequency
RR
315.00 MHz
80
434.00 MHz
80
915.00 MHz
80
f_RO = 8.0000MHz
NR
RT
3043
8
4233
8
9043
8
CPCUR
VCOCUR
NT
RX
TX
RX
TX
315
260µA 1300µA 300 µA 900µA
434
260µA 1300µA 300 µA 900µA
915
260µA 1300µA 300 µA 900µA
39012 07122 02
Rev. 005
Page 19 of 24
EVB Description
June/07