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參數(shù)資料
| 型號(hào)： | HDM8515P |
| 廠商： | Hynix Semiconductor Inc. |
| 英文描述： | Operational Amplifier (Op-Amp) IC; Number of Amplifiers:4; Package/Case:14-DIP; Op Amp Type:Low Power; Single Supply Voltage Min (+V):3V; Dual Supply Voltage Max (+/- V):16V; Amplifier Type:Operational; Mounting Type:Through Hole |
| 中文描述： | 的DVB /決策支持系統(tǒng)兼容接收器 |
| 文件頁(yè)數(shù)： | 61/75頁(yè) |
| 文件大?。?/td> | 272K |
| 代理商： | HDM8515P |
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61
6.2 Read Registers
ADDRESS (Hex)
00
Narrowband AGC Accumulator
The current value of the 8 bit AGC accumulator may be read from this
location.
Symbol Timing Frequency Accumulator
The current value of the 24 bit frequency accumulator in the symbol timing
loop filter may be read from these 3 locations.
Phase Tracking Frequency Accumulator
The current value of the 24 bit frequency accumulator in the carrier phase
loop filter may be read from these 3 locations.
QPSK Lock Status
Bit 0. QPSK Lock Flag
When this bit is set to one, the QPSK demodulator is phase locked.
Wide Band AGC Accumulator
This eight bit value represents the most significant bits of the accumulator
in the first order wideband AGC loop. This data only has meaning when
the wideband AGC is in Mode 0.
Sweep Frequency
The 16 bit sweep accumulator is available at this location. Bit 7 of address
09 is the MSB and bit 0 of address 0A is the LSB. The receiver frequency
is determined by adding the Sweep Frequency with the carrier frequency
accumulator (read addresses 04, 05 and 06) and the nominal carrier start
frequency (write addresses 04, 05 and 06).
In-Phase
The six LSB bit output of the In-phase baseband filter is available at this
location. This data is updated once per symbol.
01, 02, 03
04, 05, 06
07
08
09, 0A
0B
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