參數(shù)資料
型號(hào)： CXA1700AR
廠商： Sony Corporation
元件分類(lèi)： 外設(shè)及接口
英文描述： Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C
中文描述： 電可擦除可編程邏輯器件
文件頁(yè)數(shù)： 27/51頁(yè)
文件大?。?/td> 794K
代理商： CXA1700AR
—27—
CXA1700AQ/AR
Detailed Explanation of Measurement Method
(1) DEMOD LPF frequency characteristics measurement
Using the CXA1207A as a modulator, the configuration for SG41 is shown below.
First, without inputting SG54, adjust V
CAR
so that the Y RF OUT (Pin 43) output frequency of the
CXA1207A is 5MHz. Use V
CARO
for the V
CAR
voltage. Next, apply V
CARO
+ 500mV, measure the Y RF
OUT (Pin 43) output frequency fo of the CXA1207A, and then calculate the MOD gain using the following
equation.
GMOD =
fo (MHz)–5 (MHz)
500 (mV)
The compensation values are derived from GMOD and from GDEMOD1 and GDEMOD2 of measurement
Nos. 48 and 50.
Standard mode compensation value : G
C1
= 20log [G
MOD
(MHz/mV) x G
DEMOD1
(mV/MHz)]
Hi-8 mode compensation value :
G
C2
= 20log [G
MOD
(MHz/mV) x G
DEMOD2
(mV/MHz)]
Next, in order to set the SG41 carrier frequency, adjust V
CAR
so that the Y RF OUT (Pin 43) output of the
CXA1207A in standard mode is 4.8MHz and in Hi-8 mode is 6.7MHz.
In the above state, measure the I/O gain for the SG54 (200mVp-p/300kHz) input and P7 (Pin 7 DEMOD
OUT), with the gain for standard mode being G
LPF10
and for Hi-8 mode G
LPF20
.
Using these measured values and compensation values, the low frequency gain for DEMOD LPF is
determined using the following equations:
Standard mode :
G
LPF11
= G
LPF10
- G
C1
(dB)
Hi-8 mode :
G
LPF21
= G
LPF20
- G
C2
(dB)
7
41
54
43
CXA1207A
REC MODE
SW41
YRFIN
LIM
DEMOD
LPF
DEMOD
OUT
P7
CXA1700A to be measured
CAR
1μ
4700
4700
SG54
V
CAR
(SG41)
YRFOUT
FM
MOD
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CXA1779P 制造商:Panasonic Industrial Company 功能描述:IC
CXA1816-0000-000N00M40E8 功能描述:大功率LED - 白色 Warm White, 2700K 1682lm, 450mA, 80CRI RoHS:否 制造商:Cree, Inc. 照明顏色:Warm White 顏色溫度:2700 K 光通量:1682 lm 顯示角:115 deg 正向電流:450 mA 正向電壓:37 V 安裝風(fēng)格:SMD/SMT 系列:CXA1816 封裝:Tray
CXA1816-0000-000N00M427F 功能描述:大功率LED - 白色 Warm White, 2700K 1682lm, 450mA, 80CRI RoHS:否 制造商:Cree, Inc. 照明顏色:Warm White 顏色溫度:2700 K 光通量:1682 lm 顯示角:115 deg 正向電流:450 mA 正向電壓:37 V 安裝風(fēng)格:SMD/SMT 系列:CXA1816 封裝:Tray
CXA1816-0000-000N00M427H 功能描述:大功率LED - 白色 Warm White, 2700K 1682lm, 450mA, 80CRI RoHS:否 制造商:Cree, Inc. 照明顏色:Warm White 顏色溫度:2700 K 光通量:1682 lm 顯示角:115 deg 正向電流:450 mA 正向電壓:37 V 安裝風(fēng)格:SMD/SMT 系列:CXA1816 封裝:Tray
CXA1816-0000-000N00N20E6 功能描述:大功率LED - 白色 Warm White, 3500K 1762lm, 450mA, 80CRI RoHS:否 制造商:Cree, Inc. 照明顏色:Warm White 顏色溫度:3500 K 光通量:1762 lm 顯示角:115 deg 正向電流:450 mA 正向電壓:37 V 安裝風(fēng)格:SMD/SMT 系列:CXA1816 封裝:Tray
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