DEMOBOARD-U3600BM Atmel, DEMOBOARD-U3600BM Datasheet - Page 20

• Manufacturer Part Number: DEMOBOARD-U3600BM
• Description: BOARD DEMO FOR U3600BM
• Manufacturer: Atmel
• Type: Cordless Phone ICr

Specifications of DEMOBOARD-U3600BM

• Contents: Board, Software and Documentation
• For Use With/related Products: U3600BM
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

9. Channel Frequencies, Dividers and Country Settings
20
U3600BM
To meet all requirements of various countries – France (F), Spain (E), Netherlands (NL), USA,
Portugal (P), Taiwan, New Zealand and Korea – and modes – base (b), handset (h) – several
bits have to be set which do not change for the different channels. These settings are called
country settings.
Note:
• The country-setting bits contain:
• Rough adjustments for 2 VCOs
• Setting three integer divider in the mixer PLL and modulator PLL
• Conversion gain adjustment of mixer PLL
• Modulator gain
• Setting of the pulling direction of PLL2 (value dependent, if TX frequency is higher or lower
• Demodulator gain
than LO frequency)
Name Register
GMOD[1:0]
Setting the fractional dividers:
For N, Q
For P
i.e., Fb1 (P
RA1[1:0]
RA2[1:0]
DR1[1:0]
D1[1:0]
D3[1:0]
KV[3:1]
GDEM
FRMT
IMIXI
M12
D20
M
(integer part of modulator PLL), send the D2 complement (16 – P
M
, send the binary equivalent of the numbers given below.
M
= 7, Q
M
reference frequency f
Reverse inputs of PC of
= 159 => integer: send 16 – P
Conversion gain VCO2
Additional divider M for
Rough adjust VCO1
Rough adjust VCO2
Integer divider M12
Integer divider D1
Integer divider D2
Integer divider D3
Demodulator gain
Frequency range
Modulator gain
Function
Mixer T
PLL
Ref1
0: if fVCO2 lower than fVCO3
Doubles reference frequency
0: output frequency < 5 MHz
00: is the highest frequency
00: is the highest frequency
“0” means no reduction, >0
M
only necessary in E, NL,
of PLL2 when set to “1”
= 9, fractional: send 159)
Division by 2, 4, 6, 8
Division by 1, 2, 4
00: gain minimal
Division by 6, 8
0: high gain
1: low gain
Portugal
Notes
M
)
4516D–CT0–10/05
Number of
Positions
3
4
4
2
2
3
6
3
2
4
2
2