U3600BM_05 Datasheet, PDF (23/44 Pages) ATMEL Corporation – Single-chip Cordless Telephone IC

10.3 France Hand
U3600BM
Table 10-6. 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
01
11
1
01
101
01 ⁽¹⁾
1
00
Value
max
D1 = 4 D2 = 8 D3 = 2
infra
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 10-7. Channel Frequencies and 1st LO Divider, f_Ref3 = 6.25 kHz
Channel
TX Channel Frequency
RX Channel Frequency
Number
(MHz)
(MHz)
1
41.3125
26.3125
2
41.3250
26.3250
3
41.3375
26.3375
4
41.3500
26.3500
5
41.3625
26.3625
6
41.3750
26.3750
7
41.3875
26.3875
8
41.4000
26.4000
9
41.4125
26.4125
10
41.4250
26.4250
11
41.4375
26.4375
12
41.4500
26.4500
13
41.4625
26.4625
14
41.4750
26.4750
15
41.4875
26.4875
10.3.1 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)
37.0125
37.0250
37.0375
37.0500
37.0625
37.0750
37.0875
37.1000
37.1125
37.1250
37.1375
37.1500
37.1625
37.1750
37.1875
DV3I[14:0] = N
5922
5924
5926
5928
5930
5932
5934
5936
5938
5940
5942
5944
5946
5948
5950
23
4516D–CT0–10/05