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參數資料
| 型號： | ADF7020BCP |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | High Performance ISM Band FSK/ASK Transceiver IC |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC48 |
| 封裝： | 7 X 7 MM, LFCSP-48 |
| 文件頁數： | 38/40頁 |
| 文件大小： | 797K |
| 代理商： | ADF7020BCP |
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ADF7020
Preliminary Technical Data
REGISTER 12—TEST REGISTER
Rev. PrH | Page 38 of 40
C
R
DIGITAL
TEST MODES
Σ
-
TEST MODES
ANALOG TEST
MUX
IMAGE FILTER ADJUST
O
F
L
S
P
PLL TEST MODES
ADDRESS
BITS
S
S
T
T
T
T
S
S
S
S
T
T
T
P
C
C
C
C
T
T
Q
C
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
P
0
1
PRESCALER
4/5 (DEFAULT)
8/9
CR1
0
1
COUNTER RESET
DEFAULT
RESET
CS1
0
1
CAL SOURCE
INTERNAL
SERIAL IF BW CAL
DEFAULT = 32. INCREASE
NUMBER TO INCREASE BW
IF USER CAL ON
0
Figure 40.
Using the Test DAC on the ADF7020 to Implement
Analog FM DEMOD and Measuring SNR
The test DAC allows the output of the postdemodulator filter
for both the linear and correlator/demodulators (Figure 16 and
Figure 17) to be viewed externally. It takes the 16-bit filter
output and converts it to a high frequency, single-bit output
using a second-order error feedback
Σ
-
converter. The output
can be viewed on the XCLK
OUT
pin. This signal, when IF filtered
appropriately, can then be used to
Monitor the signals at the FSK/ASK postdemodulator filter
output. This allows the demodulator output SNR to be
measured. Eye diagrams can also be constructed of the
received bit stream to measure the received signal quality.
Provide analog FM demodulation.
While the correlators and filters are clocked by DEMOD_CLK,
CDR_CLK clocks the test DAC. Note that, although the test
DAC functions in a regular user mode, the best performance is
achieved when the CDR_CLK is increased up to or above the
frequency of DEMOD_CLK. The CDR block does not function
when this condition exists.
Programming the test register, Register 12, enables the test DAC.
Both the linear and correlator/demodulator outputs can be
multiplexed into the DAC.
Register 13 allows a fixed offset term to be removed from the
signal (to remove the IF component in the ddt case). It also has
a signal gain term to allow the usage of the maximum dynamic
range of the DAC.
Setting Up the Test DAC
Digital test modes = 7: enables the test DAC, with no offset
removal.
Digital test modes = 10: enables the test DAC, with offset
removal.
The output of the active demodulator drives the DAC, that is, if
the FSK correlator/demodulator is selected, the correlator filter
output drives the DAC.
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| ADF7020BCP-REEL | 制造商:Analog Devices 功能描述:RF TRNSCVR ASK/FSK 2.5V/3.3V 48LFCSP EP - Tape and Reel |
| ADF7020BCP-REEL7 | 制造商:Analog Devices 功能描述:RF TRNSCVR ASK/FSK 2.5V/3.3V 48LFCSP EP - Tape and Reel |
| ADF7020BCP-U1 | 制造商:Analog Devices 功能描述:HIGH PERFORMANCE ISM BAND FSK/ASK TRANSCEIVER IC - Trays |
| ADF7020BCPZ | 功能描述:IC TX FSK/ASK ISM BAND 48LFCSP RoHS:是 類別:RF/IF 和 RFID >> RF 收發器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數據傳輸率 - 最大:54Mbps 調制或協議:* 應用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數據接口:PCB，表面貼裝 存儲容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件 |
| ADF7020BCPZ-RL | 功能描述:IC TX FSK/ASK ISM BAND 48LFCSP RoHS:是 類別:RF/IF 和 RFID >> RF 收發器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數據傳輸率 - 最大:54Mbps 調制或協議:* 應用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數據接口:PCB，表面貼裝 存儲容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件 |
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