- 您現在的位置：買賣IC網 > PDF目錄30725 > LA7615 SPECIALTY CONSUMER CIRCUIT, PDIP64 PDF資料下載
參數資料
| 型號： | LA7615 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP64 |
| 封裝： | SDIP-64 |
| 文件頁數： | 10/39頁 |
| 文件大小： | 206K |
| 代理商： | LA7615 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁當前第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁
First SIF Block - Input Signals and Test Conditions
For each of the test items, set up the following conditions unless otherwise specified.
1.
PIF.IN: 45.75 MHz, 93 dB, CW
2.
Bus control conditions: Set the following 4 items to their adjusted values.
(See the VIF block test description for details on the adjustment procedure.)
APC DET.ADJ
PLL tuning
4.5 MHz trap
Video level
3.
Apply the input signal to the pin 12, using a signal with a frequency of 41.25 MHz CW.
SIF Block - Input Signals and Test Conditions
For each of the test items, set up the following conditions unless otherwise specified.
1.
Connect pin 13 (SIF AGC) to ground.
2.
Bus control conditions: IF.AGC.SW = 1.
3.
SW:IF1 = off
4.
Apply the input signal to pin 61. The carrier frequency should be 4.5 MHz.
No. 5841-18/39
LA7615
Parameter
Symbol
Test point
Input signal
Test procedure
Bus condition
4.5 MHz conversion gain
4.5 MHz output level
First SIF maximum input
SCG
SVO
SVM
60 dB
88 dB
96 dB
Measure the pin 59 output 4.5 MHz component (mV
rms). Let SV1 be this measured value and perform
the following calculation.
SCG = 20 × log(SV1 × 1000) – 60 [dB]
Measure the pin 59 output 4.5 MHz component (mV
rms). Let SV2 be this measured value and perform
the following calculation.
SCO = 20 × log(SV2 × 1000) [dB]
Measure the pin 59 output 4.5 MHz component (mV
rms). Let SV3 be this measured value and perform
the following calculation.
SCM = 20 × log(SV3/SV1) [dB]
59
Parameter
Symbol
Test point
Input signal
Test procedure
Bus condition
FM detector output voltage
FM limiting sensitivity
FM detector output bandwidth
FM detector output distortion
AM rejection ratio
SIF signal-to-noise ratio
SOADJ
SLS
SF
STHD
SAMR
SSN
90 dB,
fm = 1 kHz,
FM = ±25 kHz
fm = 1 kHz,
FM = ±25 kHz
90 dB,
FM ±25 kHz
90 dB,
fm = 1 kHz,
FM ±25 kHz
90 dB,
fm = 1 kHz,
AM = 30%
90 dB, CW
Adjust the D/A converter (FM.LEVEL) so that the pin
5 FM detector output 1 kHz component is as close to
424 mV rms as possible. Measure the output (mV
rms) at that time.
Let SV1 be the measured value at this time.
Determine the input level (dB) such that the pin 5
FM detector output 1 kHz component is down –3 dB
from SV1.
Determine the modulation frequency bandwidth (Hz)
for a –3 dB drop in the pin 5 FM detector output
1 kHz component with respect to SV1.
Determine the distortion in the pin 5 FM detector
output 1 kHz component.
Measure (in mV rms) the pin 5 FM detector output
1 kHz component.
Let SV2 be the measured value at this time and
perform the following calculation.
SAMR = 20 × log(SV1/SV2) [dB]
Set the SW:IF1 switch to the on state.
Measure the noise level (mV rms) on pin 5.
Let SV3 be the measured value at this time and
perform the following calculation.
SSN = 20 × log(SV1/SV3) [dB]
FM.LEVEL =
adjusted value.
FM.LEVEL =
adjusted value.
FM.LEVEL =
adjusted value.
FM.LEVEL =
adjusted value.
FM.LEVEL =
adjusted value.
5
59
相關PDF資料 |
PDF描述 |
|---|---|
| LA7621 | HORIZ/VERT DEFLECTION IC, PDIP30 |
| LA7620 | HORIZ/VERT DEFLECTION IC, PDIP30 |
| LA7625 | SPECIALTY CONSUMER CIRCUIT, PDIP30 |
| LA7626 | SPECIALTY CONSUMER CIRCUIT, PDIP30 |
| LA7629 | HORIZ/VERT DEFLECTION IC, PDIP30 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LA7620 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Color TV Video, Chroma, Deflection Circuit |
| LA7621 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LA7625 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video, Chroma and Deflection Circuit for Color Television Sets |
| LA7626 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video, Chroma and Deflection Circuit for Color Television Sets |
| LA7629 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Color TV/Video,Chroma,Deflection Circuit |
發布緊急采購，3分鐘左右您將得到回復。