參數(shù)資料
型號: CLC020
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 消費家電
英文描述: SMPTE 259M Digital Video Serializer with Integrated Cable Driver(SMPTE 259M數(shù)字視頻串行器帶集成電纜驅(qū)動器)
中文描述: SPECIALTY CONSUMER CIRCUIT, PQCC28
封裝: PLASTIC, LCC-28
文件頁數(shù): 7/15頁
文件大?。?/td> 316K
代理商: CLC020
Device Operation
(Continued)
36 MHz signal, appropriate to the raster size desired, at the
P
input and wait until the Lock_Detect output goes true
indicating the VCO is locked on-frequency. Then, take
TPG_Enable, pin 17, to a logic high. The serial test pattern
data appears on the SDO outputs. TPG_Enable may be
temporarily connected to the Lock_Detect output to auto-
mate TPG operation. The TPG mode is exited by taking
TPG_Enable to a logic low. Table 1 gives device pin func-
tions for this mode. Table 2 gives the available test patterns
and selection codes.
TABLE 1. BIST and Test Pattern Generator Control Functions
Pin
3
4
5
6
17
26
Name
D0
D1
D2
D3
TPG_EN
Test_Out
Function
TPG code input LSB
TPG code input
TPG code input
TPG code input MSB
TPG Enable, active high true
BIST Pass/Fail output. Pass=High
(See text for timing requirements)
DS100917-6
FIGURE 4. Built-In Self-Test Control Sequence
DS100917-7
FIGURE 5. Test Pattern Generator Control Sequence
C
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