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參數(shù)資料
| 型號(hào)： | SDA5252M-2 |
| 廠商： | SIEMENS A G |
| 元件分類： | 圖文 |
| 英文描述： | BATTERY OXYRIDE ALKA AA 1.5V |
| 中文描述： | TELETEXT DECODER, PQFP64 |
| 文件頁數(shù)： | 23/23頁 |
| 文件大小： | 147K |
| 代理商： | SDA5252M-2 |
SDA 525X-2
Semiconductor Group
23
1998-10-08
Necessary changes compared to SDA 525x according to preliminary data sheet
1998-02-18 are:
1. RGB-outputs deliver a current instead of a voltage. Any voltage divider can be
replaced by a single resistor. This resistor will have a different dimension. The nominal
output current is 5.2 mA with a resistor of 27 k
at the
I
REF
-pin.
2. Instead of FIL1SLC/FIL2SLC/FIL3SLC only FIL3 is needed with changed external
device dimensions. Former FIL1SLC and FIL2SLC remain “not connected”. For best
slicer performance FIL3 is tied to
V
DDA
. FIL3 may be tied to
V
SSA
, if a ripple free
V
DDA
is available.
3. LCIN and LCOUT are not needed any more and are not connected or used for RD and
WR in the P-MQFP-80-1-package, respectively.
4. P-MQFP-80-1 now has RD (Pin 52), WR (53) and PSEN (1) Pins to connect external
RAM.
5. The 18-MHz-crystal is replaced by a 6-MHz type.
‘n. c.’ = ‘not connected’ means: Pins must be left open.
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