T2802 ATMEL [ATMEL Corporation], T2802 Datasheet - Page 19

• Manufacturer Part Number: T2802
• Description: 2.4 GHz WDECT/ISM SINGLE-CHIP TRANSCEIVER
• Manufacturer: ATMEL [ATMEL Corporation]

VCO_DAC Adjustment
CPCS Adjustment
Data Word 2 Programs
DEMODDAC Adjustment
4509F–DECT–10/03
With bits D3 - D6
Used to pretune the VCO frequency in case of production tolerances of the device.
With bits D1 - D2
Used to adjust the charge pump current. This can be used to compensate the change of
the tuning sensitivity over frequency and device tolerances.
With bits E6 - E10
Only in RX mode effective. Used to tune the demodulator center frequency and allows
to compensate tolerances of external components and the T2802.
E10
...
0
0
0
1
1
1
D6
...
E9
0
0
0
1
1
1
D2
...
0
0
0
1
1
1
0
0
1
1
E8
...
0
0
0
1
1
1
CPCS (Charge-pump Current Settings)
E7
...
0
0
1
0
1
1
D5
Pretune DAC Voltage
...
0
0
0
1
1
1
Demod DAC Voltage
E6
...
0
1
0
1
0
1
D1
0
1
0
1
D4
...
0
0
1
0
1
1
f
D3
IFcenter
...
0
1
0
1
0
1
-5
...
...
...
...
...
5
%
CPCS
-1
0
1
2
T2802
f
VCO
-5
...
...
...
...
...
5
/%
19