TH7108 データシートの表示（PDF） - Unspecified
部品番号
コンポーネント説明
メーカー
TH7108 Datasheet PDF : 8 Pages
| |||
TH7108
868/915MHz FSK/ASK/FM Transmitter
AC Characteristics
Ta = -40 to +85 °C,
Vcc = 2.1 to 5.5 V,
typical values at Ta = 23 °C
and Vcc = 3 V
(ENCK = 1 ENTX = 1, Rps=47 kΩ , fc = 868.35 MHz, test circuit shown in Fig. 2)
Parameter
Symbol
Condition
Min
Typ
output power
Po
DATA = HIGH
-1
max. data rate at RFSK
25
FSK
FSK deviation
∆fFSK adjustable with
±30
Cx1, Cx2,, ref. to
Fig. 2
max. data rate at RASK DATA = LOW
40
ASK
max. modulation
fmod DATA = HIGH
20
frequency at FM
FM deviation
∆fFM adjustable with
±12
varactor and VFM
reference spurs
Pref
@ fc ± fref
-40
clock spurs
Pclk
@ fc ± fclk
-40
harmonic content Pharm
-55
phase noise
L
DATA = HIGH
-87
@ fc ± 500kHz
VCO gain
kVCO
300
charge pump
ICP
current
±260
clock volt. swing VCKOUT Cload = 5pF
1.8
start-up time
ton
from ”all OFF”to
0.7
any other mode
Max Unit
dBm
kbit/s
kHz
kbit/s
kHz
kHz
dBm
dBm
dBm
dBc/Hz
MHz/V
µA
Vpp
ms
Output Power Selec-
tion
typical values at Ta = 23 °C
and Vcc = 3 V,
(ENCK = 1, ENTX = 1, fc = 868.35 MHz, test circuit shown in Fig. 2, C2 and C3 to adjust for Po and Pharm)
Rps / kΩ
≥ 68
56
47
39
27
15
Vps / V
≥2
1.2
0.9
0.7
0.5
0.3
Icc / mA
Po / dBm
Pharm/dBm
12.5
3.0
≤-36
9.5
0.5
≤-40
8.5
-1.0
≤-40
6.5
-4.0
≤-45
5.8
-8.0
≤-45
5.0
-12.0
≤-50
C2 / pF
TBD
TBD
TBD
TBD
TBD
TBD
C3 / pF
TBD
TBD
TBD
TBD
TBD
TBD
Rev. 2.0
Preliminary Datasheet
4
February 2000
Share Link: 