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參數(shù)資料
| 型號： | AMIS30585C5852RG |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 4/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MODEM S-FSK HALFDUPLEX 28PLCC |
| 標(biāo)準(zhǔn)包裝： | 750 |
| 波特率： | 14.4k |
| 電源電壓： | 3 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 28-PLCC（11.51x11.51） |
| 包裝： | 帶卷 (TR) |
AMIS30585
http://onsemi.com
12
Transmitter External Parameters: Pin TX_OUT, ALC_IN, TX_ENB
To guarantee the transmitter external specifications the TX_CLK frequency must be 12 MHz # 100 ppm.
Table 10. TRANSMITTER EXTERNAL PARAMETERS
Parameter
Description
Condition
Min.
Max.
Unit
VTX_OUT
Maximum peak output level
fTX_OUT = 50 kHz
fTX_OUT = 95 kHz
Level control at max. output
0.85
0.76
1.15
1.22
Vp
HD2
Second order harmonic distortion
fTX_OUT = 95 kHz
Level control at max. output
56
dB
HD3
Third order harmonic distortion
fTX_OUT = 95 kHz
Level control at max. output
58
dB
DfTX_OUT
Frequency accuracy of the gener-
ated sine wave
30
Hz
CLTX_OUT
Capacitive output load at pin
TX_OUT
(Note 11)
20
pF
RLTX_OUT
Resistive output load at pin TX_OUT
5
KW
TdTX_ENB
Turn off delay of TX_ENB output
(Note 12)
0.25
0.5
ms
11. This parameter will not be tested in production.
12.This delay corresponds to the internal transmit path delay and will be defined during design.
13.Taking into account the resolution of the DDS and an accuracy of 100 ppm of the crystal.
Table 11. TRANSMITTER EXTERNAL PARAMETERS
Parameter
Description
Condition
Min.
Max.
Unit
ALCstep
Automatic level control attenuation step
2.9
3.1
dB
ALCrange
Maximum attenuation
20.3
21.7
dB
VTLALC_IN
Low threshold level on ALC_IN
0.46
0.36
V
VTHALC_IN
High threshold level on ALC_IN
0.68
0.54
V
ILE_ALC_IN
Input leakage current of receiver input
1
mA
PSRRTX_OUT
Power supply rejection ration of the trans-
mitter section
10
(Note 14)
35
(Note 15)
dB
14.A sinusoidal signal of 10 kHz and 100 mV ptp is injected between VDDA and VSSA. The digital AD converter generates an idle pattern. The
signal level at TX_OUT is measured to determine the parameter.
15.A sinusoidal signal of 50 Hz and 100 mV ptp is injected between VDDA and VSSA. The digital AD converter generates an idle pattern. The
signal level at TX_OUT is measured to determine the parameter.
The LPF filter + amplifier must have a frequency
characteristic between the limits listed below. The absolute
output level depends on the operating condition. In
production the measurement will be done for relative output
levels where the 0 dB reference value is measured at 50 kHz
with a signal amplitude of 100 mV.
Table 12. TRANSMITTER FREQUENCY
CHARACTERISTICS
Frequency (kHx)
Min. (dB)
Max. (dB)
10
0.5
95
1.3
0.5
130
4.5
2.0
165
3.0
330
18.0
660
36.0
1000
50
2000
50
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