参数资料
| 型号： | ISL59834IRZ |
| 厂商： | Intersil |
| 文件页数： | 5/17页 |
| 文件大小： | 0K |
| 描述： | IC VIDEO FILTER CHRG PUMP 44-QFN |
| 标准包装： | 43 |
| 应用： | 滤波器 |
| 电路数： | 4 |
| -3db带宽： | 9MHz |
| 电流 - 电源： | 28mA |
| 电流 - 输出 / 通道： | 50mA |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 3.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-VFQFN 裸露焊盘 |
| 供应商设备封装： | 44-QFN-EP（7x7） |
| 包装： | 管件 |
| 产品目录页面： | 1247 (CN2011-ZH PDF) |
13
FN6268.1
June 11, 2008
Description of Operation and Application Information
Theory of Operation
The ISL59834 is a single supply video driver with a
reconstruction filter and an on-board charge pump. It is
designed to drive SDTV displays with component (YPbPr),
S-video (Y-C), or composite video (CV) signals. The input
signals can be AC or DC-coupled. When AC-coupled, a sync
tip clamp sets the blank level to ground at the output of
Channel 1 and Channel 3. Keyed clamps force the average
levels of Channel 2 and Channel 4 to ground. The keyed
clamps force the outputs to ground when SYNC_INA or
SYNC_INB are driven to the logic high state. The ISL59834
outputs are capable of driving two AC or DC-coupled
standard video loads and have a 4th order Butterworth
reconstruction filter with nominal -3dB frequency set to
9MHz, providing 40dB of attenuation at 27MHz. The
ISL59834 is designed to operate with a single supply voltage
range ranging from 3.0V to 3.6V. This eliminates the need for
a split supply with the incorporation of two charge pumps
capable of generating a bottom rail as much as 1.5V below
ground; providing a 4.8V range on a single 3.3V supply. This
performance is ideal for NTSC video with negative-going
sync pulses.
Output Amplifier
The ISL59834 output amplifiers provide a gain of +6dB. The
output amplifiers are able to drive a 2.8VP-P video signal into
a 150
Ω or 75Ω load to ground.
The outputs are highly-stable, low distortion, low power, high
frequency amplifiers capable of driving moderate (~10pF)
capacitive loads.
Input/Output Range
The ISL59834 has a dynamic input range of 0 to 1.4VP-P
This allows the device to handle high amplitude video signal
inputs. As the input signal moves outside the specified
range, the output signal will exhibit increasingly higher levels
of harmonic distortion.
Charge Pump
The ISL59834 contains two charge pumps; charge pump A
supplies Channel 1 and 2, while charge pump B supplies
Channel 3 and 4. The ISL59834 charge pumps provide a
bottom rail up to 1.5V below ground while operating on a
3.0V to 3.6V power supply. The charge pumps are internally
regulated and are driven by internal 9.5MHz clocks. The
FIGURE 25. NOISE SPECTRUM
FIGURE 26. CHARGE PUMP FEEDTHROUGH AT AMPLIFIER
OUTPUT
FIGURE 27. THD (dBc) vs OUTPUT VOLTAGE (VP-P)
FIGURE 28. PACKAGE POWER DISSIPATION
Typical Performance Curves
VCP = VS = 3.3V, CF1 = CF2 = 0.1F, CS1 = CS2 = 0.22F, CFIL1 =CFIL2 = 0.4F, CIN1 = CIN2 =
CIN3 = CIN4 = 0.1F, RL1 =RL2 = 150Ω. (Continued)
0.1
1
10
100
0M
2M
4M
6M
8M
10M
FREQUENCY (Hz)
V/
√Hz
RMS NOISE = 2.87mV
OUTPUT REFERRED
CHARGE PUMP NOISE,
CONTRIBUTES ONLY A SMALL
PERCENTAGE OF THE
OVERALL NOISE
1M
3M
5M
7M
9M
TIME SCALE = 50ns/DIV
VERTICAL SCALE = 20mV/DIV
-70
-60
-50
-40
-30
-20
-10
0
0.5
0.8
1.1
1.4
1.7
2.0
OUTPUT VOLTAGE (V)
THD
(
d
Bc
)
fIN = 5MHz
fIN = 500kHz
VS = VCP = +3.3V
RL = 150Ω
VOUT = 0 TO 2VP, SINE WAVE
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
AMBIENT TEMPERATURE (°C)
POWER
DISS
IP
A
T
ION
(W)
44 LD QFN PACKAGE
7mmx7mm
θ
JA = +32°C/W
ISL59834
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL59837 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:200MHz Single Supply Video Driver With Charge Pump and Power Down |
| ISL59837IAZ | 功能描述:IC VIDEO DRIVER TRUE SGL 16-QSOP RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:TFT-LCD 面板：VCOM 驱动器 输出类型:满摆幅 电路数:1 -3db带宽:35MHz 转换速率:40 V/µs 电流 - 电源:3.7mA 电流 - 输出 / 通道:1.3A 电压 - 电源，单路/双路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 供应商设备封装:8-uMax-EP 包装:管件 |
| ISL59837IAZ-EVALZ | 功能描述:EVAL BOARD FOR ISL59837IAZ 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 |
| ISL59837IAZ-T7 | 功能描述:IC VIDEO DRIVER TRUE SGL 16-QSOP RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 标准包装:1,000 系列:- 应用:驱动器 输出类型:差分 电路数:3 -3db带宽:350MHz 转换速率:1000 V/µs 电流 - 电源:14.5mA 电流 - 输出 / 通道:60mA 电压 - 电源，单路/双路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 供应商设备封装:20-QFN 裸露焊盘（4x4） 包装:带卷 (TR) |
| ISL59885 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Auto-Adjusting Sync Separator for HD and SD Video |
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