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7. CALIBRATION
- 175 -
7.3.3 EGSM 900 Calibration Items
A. GSM Ramp Up/Down Calibration
- Purpose
This item contains the GSM normal Tx burst up/down-ramp DAC values for each power level.
When a GSM Tx burst is generated, it shall pass the ETSI standard power mask as well as Output RF
Spectrum due to Modulation and Switching (OSRF).
- Procedure Proposal
1. Set phone to GSM mode. Determine the DAC codes for each power level during steady state (flat
part of the burst). Each power level has a tolerance limit as shown in Table 7-1.
2. Let’s call X the power levels and Y(x) (i) the up ramp DAC value of X power level at iteration i ( we
have 30). We then have the following:
NV_GSM_TX_BURST_UP_RAMP_INDEX_X = (X, Y(x) (i) ), where X is a power level For
Power Control Level X= 5 to 19
For i = 1 to 30 (Number of step for Ramp Up)
NV_GSM_TX_BURST_UP_RAMP_INDEX_X[X, Y(x) (i)] = GSM_PA_DAC_CODE[X] - DAC
Table [X,Y(x) (i)]
Next i
Next x
3. Turn PA off
4. Write NV_GSM_TX_BURST_UP_RAMP_INDEX_X[X, Y(x) (i)] to an NV file.
Power
Passing Limits
PA DAC code[x]
Control Level
(tolerances)
(RF Cal Station)
5 (33 dBm)
±
0.2 dB
x
6 (31 dBm)
±
0.4 dB
x
7 (29 dBm)
±
0.4 dB
x
8 (27 dBm)
±
0.4 dB
x
9 (25 dBm)
±
0.4 dB
x
10 (23 dBm)
±
0.4 dB
x
11 (21 dBm)
±
0.4 dB
x
12 (19 dBm)
±
0.4 dB
x
13 (17 dBm)
±
0.4 dB
x
14 (15 dBm)
±
0.2 dB
x
15 (13 dBm)
±
0.4 dB
x
16 (11 dBm)
±
0.5 dB
x
17 (9 dBm)
±
0.5 dB
x
18 (7 dBm)
±
0.5 dB
x
19 (5 dBm)
±
0.5 dB
x
Table 7-1. Tolerances for each power level
Summary of Contents for U8210
Page 22: ...3 TECHNICAL BRIEF 23 Figure 3 2 1 1 RTR6250 IC Functional Block Diagram ...
Page 37: ...3 TECHNICAL BRIEF 38 Figure 3 5 12 1 Bluetooth system architecture ...
Page 110: ...4 TROUBLE SHOOTING 111 USB_D USB_D USB_VBUS X100 48M 48MHz ...
Page 115: ...4 TROUBLE SHOOTING 116 LCD Control data flow ...
Page 117: ...4 TROUBLE SHOOTING 118 LCD Control data flow ...
Page 122: ...4 TROUBLE SHOOTING 123 TR400 ...
Page 124: ...4 TROUBLE SHOOTING 125 FLASH_ON from Main Bíd PM6650 CN1 Flash LED ...
Page 127: ...4 TROUBLE SHOOTING 128 FB503 CN500 FB502 CN2 CN1 ...
Page 129: ...4 TROUBLE SHOOTING 130 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Page 131: ...4 TROUBLE SHOOTING 132 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Page 133: ...4 TROUBLE SHOOTING 134 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Page 135: ...4 TROUBLE SHOOTING 136 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Page 137: ...4 TROUBLE SHOOTING 138 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Page 139: ...4 TROUBLE SHOOTING 140 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Page 141: ...4 TROUBLE SHOOTING 142 MIC Contact C404 C401 ...
Page 143: ...4 TROUBLE SHOOTING 144 C115 Head_Phone Input Pin 2 3 C102 CN304 R624 ...
Page 146: ...4 TROUBLE SHOOTING 147 Receptacle 4 6V 4 6V ...
Page 151: ...5 BLOCK DIAGRAM 152 Top Side ...
Page 152: ...5 BLOCK DIAGRAM 153 Bottom Side ...
Page 154: ...6 DOWNLOAD 155 It is ready for downloading ...
Page 160: ...6 DOWNLOAD 161 6 Click on Download to download ...
Page 165: ...6 DOWNLOAD 166 Downloading the Module image Finally Download has been complete ...
Page 168: ...6 DOWNLOAD 169 When you meet the NV Restore error Connect to the phone ...
Page 170: ...6 DOWNLOAD 171 Select the proper file and click on Restore Reading the NV file and restore NV ...
Page 200: ... 201 9 PCB LAYOUT ...
Page 201: ... 202 9 PCB LAYOUT ...
Page 202: ... 203 9 PCB LAYOUT U8210 KEYPAD SPEY0032001 1 1 TOP ...
Page 203: ... 204 9 PCB LAYOUT ...
Page 204: ... 205 9 PCB LAYOUT ...
Page 206: ... 207 ...
Page 207: ... 208 ...