參數(shù)資料
型號(hào)： TZA1046
廠商： NXP Semiconductors N.V.
英文描述： Photodiode and amplifier IC for CD and DVD applications
中文描述： 光電二極管與放大器，CD和DVD的集成電路應(yīng)用技術(shù)
文件頁(yè)數(shù)： 18/24頁(yè)
文件大小： 133K
代理商： TZA1046
2004 May 04
18
Philips Semiconductors
Preliminary specification
Photodiode and amplifier IC
for CD and DVD applications
TZA1046
12.2
Test mode description
Alignment of the diodes during OPU manufacturing requires the availability of all satellite outputs. In normal mode the
F and H channels are combined to a single output FH and the E and G channels are combined to a single output EG.
This is done to switch off two channels in the normal mode (application usage) which saves power consumption. For
alignment of the diodes each individual satellite output must be available and therefore the TZA1046 can be put in a test
mode where all satellite channels are available. The test mode is activated by pulling the R/W digital input pin above the
supply (2 to 2.5 V higher than V
DD1
), by forcing an input current into this pin (800 to 1200
μ
A) or by leaving the pin
open-circuit. Fig.7 shows the R/W input configuration.
handbook, full pagewidth
MDB576
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GND
R/W input
R/W internal
8-channel
test mode
VDD1
VDD2
3
14
11
6
Fig.7 R/W input configuration.
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