ATA8741_14 Datasheet, PDF (15/215 Pages) ATMEL Corporation – Microcontroller with UHF ASK/FSK Transmitter

Table 8-2. Bill of Material (Continued)
Component
C8
3.9pF
Value
4.7pF
C9
18pF
8.2pF
T1
Q1
9.843750MH
z
13.56MHz
R1
100kΩ
100kΩ
R2
100kΩ
100kΩ
R3
10kΩ
10kΩ
R4
1.8kΩ
1.8kΩ
Type/
Manufacturer Note
5.6pF
GRM1885C/
Murata
Frequency deviation of ±16kHz will be
performed using the combination of C8 and
C9
5.6pF
GRM1885C/
Murata
Frequency deviation of ±16kHz will be
performed using the combination of C8 and
C9
BSS83
13.567187M DSX530GK/
Hz
KDS
100kΩ
100kΩ
10kΩ
1.8kΩ
Table 8-3. Transmitter Pin Cross Reference List
Note:
Pin Name
Pin Number ATA8401/02/03
CLK
1
PA_ENABLE
2
ANT2
3
ANT1
4
XTAL
5
VS
6
GND
7
ENABLE
8
For the ATA8741, the following points differs in the data sheets:
- The temperature range is limited to –40°C to +85°C
- ESD protection: HBM 2500V, MM 100V, CDM 1000V
- Figure 8-4: Two output power measurement
- For FSK modulation, an additional MOS switch is required
Figure 8-4. Output Power Measurement ATA8741
V_S
Pin Number ATA8741/42/43
8
9
10
11
20
21
22
23
ANT1
ANT2
Z_Lopt
C₁ = 1nF
L₁ = 47nH
C₂ = 3.3pF
Z = 50Ω
Power
meter
R_in
50Ω
ATA8741 [DATASHEET]
15
9140E–INDCO–09/14