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參數(shù)資料
| 型號： | ML2003IQ |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | Logarithmic Gain/Attenuator |
| 中文描述： | LOG OR ANTILOG AMPLIFIER, 0.0199 MHz BAND WIDTH, PQCC20 |
| 封裝： | PLASTIC, CC-20 |
| 文件頁數(shù)： | 8/11頁 |
| 文件大?。?/td> | 88K |
| 代理商： | ML2003IQ |
ML2003, ML2004
PRODUCT SPECIFICATION
8
REV. 1.1.1 3/19/01
Table 2. Coarse Gain Settings (F3-F0 = 0)
The device also has the capability to read out the data word
stored in the latch. This can be done by parallel loading the
data from the latch back into the shift register when the latch
signal, LATO, is high. The LATO pulse must occur when
SCK is low. Then, the data word can be shifted out of the
shift register serially to the output, SOD, on falling edges of
the shift clock, SCK.
The loading and reading of the data word can be done
continuously or in burst. Since the shift register and latch
circuitry inside the device is static, there are no minimum
frequency requirements on the clocks or data pulses.
However, there is coupling (typically less than 100μV) of
the digital signals into the analog section. This coupling
can be minimized by clocking the data bursts in during
noncritical intervals or at a frequency outside the analog
frequency range.
Parallel Mode
The parallel mode is selected by setting SER/PAR pin low.
The parallel interface allows the gain settings to be set with
external switches or from a parallel microprocessor inter-
face.
In parallel mode, the shift register and latch are bypassed and
connections are made directly to the gain select bits with
external pins ATTEN/GAIN, C3-C0, and F3-F0. Tables 1
and 2 describe how these pins program the gain. The pins
ATTEN/GAIN, C3-C0, and F3-F0 have internal pulldown
resistors to GND. The typical value of these pulldown
resistors is 100k
.
C3 C2 C1 C0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
Ideal Gain (dB)
ATTEN/GAIN = 1 ATTEN/GAIN = 0
0
-1.5
-3.0
-4.5
-6.0
-7.5
-9.0
-10.5
-12.0
-13.5
-15.0
-16.5
-18.0
-19.5
-21.0
-22.5
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1.5
3.0
4.5
6.0
7.5
9.0
10.5
12.0
13.5
15.0
16.5
18.0
19.5
21.0
22.5
Figure 10. Serial Mode Timing
SCK
SCK
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
a) LOAD
b) READ
SID
SID
LATI
LATI
LATO
LATO
SOD
SOD
F0
F1
F2
F3
C0
C1
C2
C3
ATT/
GAIN
F0
F1
F2
F3
C0
C1
C2
C3
ATT/
相關PDF資料 |
PDF描述 |
|---|---|
| ML2003CP | Logarithmic Gain/Attenuator |
| ML2003CQ | Logarithmic Gain/Attenuator |
| ML2004 | Logarithmic Gain/Attenuator |
| ML2004CP | Logarithmic Gain/Attenuator |
| ML2004IP | Logarithmic Gain/Attenuator |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ML2003IQX | 功能描述:線性穩(wěn)壓器 - 標準 Gain/attenuator Logarithmic RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| ML2004 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Logarithmic Gain/Attenuator |
| ML2004CP | 功能描述:衰減器 -IC Gain/attenuator Logarithmic RoHS:否 制造商:Skyworks Solutions, Inc. 最大衰減:18 dB 容差: 阻抗: 功率額定值:30 dBm 安裝風格:SMD/SMT 工作溫度范圍:- 40 C to + 85 C |
| ML2004IP | 功能描述:衰減器 -IC Gain/attenuator Logarithmic RoHS:否 制造商:Skyworks Solutions, Inc. 最大衰減:18 dB 容差: 阻抗: 功率額定值:30 dBm 安裝風格:SMD/SMT 工作溫度范圍:- 40 C to + 85 C |
| ML2008 | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:レP Compatible Logarithmic Gain/Attenuator |
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