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参数资料
| 型号： | ISL59913IRZ |
| 厂商： | Intersil |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC RCVR/EQUALZR TRPL DIFF 28-QFN |
| 标准包装： | 90 |
| 类型： | 接收器 |
| 驱动器/接收器数： | 0/3 |
| 规程： | 双绞线 |
| 电源电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-VFQFN 裸露焊盘 |
| 供应商设备封装： | 28-QFN（4x5） |
| 包装： | 管件 |
| 产品目录页面： | 1241 (CN2011-ZH PDF) |
10
FN6406.0
December 15, 2006
Contrast
By varying the voltage between pins VGAIN and VREF, the
gain of the signal path can be changed in the ratio 4:1. The
gain change varies almost linearly with control voltage. For
normal operation it is anticipated the X2 mode will be selected
and the output load will be back matched. A unity gain to the
output load will then be achieved with a gain control voltage of
about 0.35V. This allows the gain to be trimmed up or down by
6dB to compensate for any gain/loss errors that affect the
contrast of the video signal. Figure 26 shows an example plot
of the gain to the load with gain control voltage.
C
ommon Mode Sync Decoding
The ISL59910 features common mode decoding to allow
horizontal and vertical synchronization information, which has
been encoded on the three differential inputs by the EL4543,
to be decoded. The entire RGB video signal can therefore be
transmitted, along with the associated synchronization
information, by using just three twisted pairs.
Decoding is based on the EL4543 encoding scheme, as
described in Figure 26 and Table 1. The scheme is a three-level
system, which has been designed such that the sum of the
common mode voltages results in a fixed average DC level with
no AC content. This eliminates the effect of EMI radiation into
the common mode signals along the twisted pairs of the cable
The common mode voltages are initially extracted by the
ISL59910 from the three input pairs. These are then passed to
an internal logic decoding block to provide Horizontal and
Vertical sync output signals (HOUT and VOUT).
Power Dissipation
The ISL59910 and ISL59913 are designed to operate with
±5V supply voltages. The supply currents are tested in
production and guaranteed to be less than 39mA per
channel. Operating at ±5V power supply, the total power
dissipation is:
where:
PDMAX = Maximum power dissipation
VS = Supply voltage = 5V
IMAX = Maximum quiescent supply current per
channel = 39mA
VOUTMAX = Maximum output voltage swing of the
application = 2V
RL = Load resistance = 150Ω Ω
θ
JA required for long term reliable operation can be
calculated. This is done using Equation 3:
00.8
VGAIN
0.4
1
2
1.8
1.4
1
0.6
0.4
GA
IN
(
V
)
0.6
0.2
1.6
1.2
0.8
FIGURE 25. VARIATION OF GAIN WITH GAIN CONTROL
VOLTAGE
TABLE 1. H AND V SYNC DECODING
RED CM
GREEN CM
BLUE CM
HSYNC
VSYNC
Mid
High
Low
High
Low
Mid
Low
High
Low
High
Mid
High
Low
Mid
Low
High
NOTE: Level ‘Mid’ is halfway between ‘High’ and ‘Low’
TIME (0.5ms/DIV)
VO
LTAGE
(0
.5V
/DI
V)
BLUE CM
OUT (CH A)
GREEN CM
OUT (CH B)
RED CM
OUT (CH C)
VSYNC
HSYNC
VO
LTAG
E
(2
.5
V/DI
V)
FIGURE 26. H AND V SYNCS ENCODED
PD
MAX
32
V
S
×
I
SMAX
V
S
(
- V
OUTMAX )
V
OUTMAX
R
L
----------------------------
×
+
×
=
(EQ. 1)
PD
MAX
1.29W
=
(EQ. 2)
ISL59910, ISL59913
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL59913IRZ-EVALZ | 功能描述:EVAL BOARD FOR ISL59913IRZ RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:* 标准包装:1 系列:PCI Express® (PCIe) 主要目的:接口，收发器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要属性:- 次要属性:- 已供物品:板 |
| ISL59913IRZ-T7 | 功能描述:视频 IC ISL95210 5V/10AUCK FET INDSTRL TEMP RNG RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| ISL59920 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple Analog Video Delay Lines |
| ISL59920_09 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple Analog Video Delay Lines |
| ISL59920IRZ | 功能描述:视频 IC ISL95311W I2C 128POS POS DCP 10KOHM S+/-5 RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
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