U3600BM_05 Datasheet, PDF (22/44 Pages) ATMEL Corporation – Single-chip Cordless Telephone IC

10.2 France Base
Table 10-4. Country Setting
Name RA1[1:0] RA2[1:0] D1[1:0] D20 D3[1:0] KV2[3:1] GMOD[1:0] IMIXI DR1I[1:0]
Setting
00
11
11
1
01
100
01 ⁽¹⁾
0
00
Value
max
min
D1 = 4 D2 = 8 D3 = 2
supra M = 1
Note:
Alternatively, GMOD[1:0] could be set to “00”. This reduces the TX conversion gain (MODIN –> RFO) from
about 3.8 kHz/V to about 2.7 kHz/V, a value, which should be still sufficient for a maximum ∆f of ∼2.5 kHz
that is useful in the French case.
FRMT
0
low
GDEM
0
high
gain
Table 10-5. Channel Frequencies and 1st LO Divider, f_Ref3 = 6.25 kHz
Channel
TX Channel
Rx Channel Frequency
Number
(MHz)
(MHz)
1
26.3125
41.3125
2
26.3250
41.3250
3
26.3375
41.3375
4
26.3500
41.3500
5
26.3625
41.3625
6
26.3750
41.3750
7
26.3875
41.3875
8
26.400
41.4000
9
26.4125
41.4125
10
26.4250
41.4250
11
26.4375
41.4375
12
26.4500
41.4500
13
26.4625
41.4625
14
26.4750
41.4750
15
26.4875
41.4875
10.2.1 France Modulation Loop Frequency and Divider
f_Mod = 4.3 MHz, P_M = 7, Q_M = 159, M = 1
f_LO = 1/2 f_VCO3
(MHz)
30.6125
30.6250
30.6375
30.6500
30.6625
30.6750
30.6875
30.7000
30.7125
30.7250
30.7375
30.7500
30.7625
30.7750
30.7875
DV3I[14:0] = N
4898
4900
4902
4904
4906
4908
4910
4912
4914
4916
4918
4920
4922
4924
4926
22 U3600BM
4516D–CT0–10/05