IV. TXC100 Block Diagram and Typical Application Circuit
Mode TX Data
C5 C6 C7
D0 D1 D2
11 12 13
Input
Input
VDD PA
6
2
3
R1
Shape
Modulation
Control
Mode Select
(ASK / FSK)
RF
Control
7
C4
XTAL
DRV
C8 C9
XTAL1 14
C1
C2
L1
REFEXT/XTAL2 LOGIC
Mixer
PA
Output
15
C3
Filter
/32
OSC
PA
8
C10
L2
CLK0
9
/N
CLK1
C11
C12
C16
10
5
BIAS
1
CLK
C13 C14 C15
PIN 4 ENABLE INPUT
PIN 16 GND
VCC
Table 1:
Component Values for Typical Application Circuit
315MHz Band
100pF
100pF
DNP
433MHz Band
100pF
100pF
DNP
C1
C2
C33
C43
C5
DNP
DNP
1uF
1uF
C6
.01uF
220pF
100pF
680pF
15pF
.01uF
220pF
100pF
680pF
6.8pF
1pF
C7
C8
C9
C10¹
C11¹
C12¹
C13
C14
C15
C16¹
L1¹²
L2¹²
X1
22pF
15pF
6.8pF
1uF
1uF
.01uF
220pF
2.2pF
27nH
.01uF
220pF
1pF
22nH
22nH
18nH
9.84375MHz
13.5600MHZ
¹Matched to 50 Ohms
²Use wirewound inductors ONLY
3Use for External Reference Input
DNP - Do Not Populate
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