Sony Ericsson GR47, Руководство по дизайну

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GR47/48 Design Guidelines
BA/SEM/MS 03:0015 Rev A LZT 123 7596
12
≥
2.0 Amp 1000
µ
F
120mV
1.5 Amp
*2500
µ
F
170mV
1.0 Amp
*6000
µ
F
160mV
0.5 Amp
*10000
µ
F
165mV
Table 3.2
C
BULK
ESR = 50m
Ω
R
LINE
= 100m
Ω
PSU LIMIT CBULK (min)
Transmit Burst
Vcc Dip (approx)
≥
2.0 Amp 1500
µ
F
200mV
1.5 Amp
4000
µ
F
150mV
1.0 Amp
*6000
µ
F
170mV
0.5 Amp
*10000
µ
F
180mV
Table 3.3
C
BULK
ESR = 50m
Ω
R
LINE
= 150m
Ω
PSU LIMIT CBULK (min)
Transmit Burst
Vcc Dip (approx)
≥
2.0 Amp 4000
µ
F
200mV
1.5 Amp
5000
µ
F
190mV
1.0 Amp
*6000
µ
F
190mV
0.5 Amp
*10000
µ
F
200mV
Table 3.4
C
BULK
ESR = 50m
Ω
R
LINE
= 200m
Ω
PSU LIMIT CBULK (min)
Transmit Burst
Vcc Dip (approx)
≥
2.0 Amp 6000
µ
F
200mV
1.5 Amp
6000
µ
F
190mV
1.0 Amp
6000
µ
F
190mV
0.5 Amp *12000
µ
F 200mV
Table 3.5
Note: When this capacitance is used with the PSU conditions stated,
the PSU will reach current limit. Although this condition on Vcc will
not adversely affect the module performance, this may not be a
condition appropriate to the supply and may adversely affect other
devices sharing the PSU output. If the PSU cannot be driven to current
limit, please select a non-current limiting configuration of CBULK and
RLINE. It is the responsibility of the application developer to ensure
correct operation of the PSU.
Further details of the GSM burst transmission waveform are given in
appendix III.
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