- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄370396 > GT560 GT560 - Digitally Controlled Transconductance Block PDF資料下載
參數(shù)資料
| 型號(hào)： | GT560 |
| 英文描述： | GT560 - Digitally Controlled Transconductance Block |
| 中文描述： | GT560 -數(shù)控跨導(dǎo)塊 |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 83K |
| 代理商： | GT560 |
7
2
3
6
1
10
9
5
8
LOGIC
INPUT
INTERFACE
GND
MODE
CONTROL
UP
CONTROL
DOWN
CONTROL
CT
N/C
4
CONTROL
LOGIC
DIGITAL
TO
ANALOG
LINEAR
TO LOG
CONVERTER
CURRENT
CONTROLLED
RESISTANCE
CLOCK
OSCILLATOR
RA
RB
LOGIC SUPPLY
(MEMORY)
ANALOG
SUPPLY
FEATURES
1.0 to 5 V DC supply voltage
70
μ
A of analog current drain (typical)
6
μ
A of memory current drain (typical)
single or dual switch control
touch plate compatible, (30 M
typ. impedance)
typical 42 dB range
adjustable clock frequency increases or decreases
time required to change diode impedance
Digitally Controlled
Transconductance Block
GT560 DATA SHEET
STANDARD PACKAGING
10 pin PLID
Chip (79 x 60 mils)
Document No. 510 - 64 - 03
CIRCUIT DESCRIPTION
The GT560 is a low voltage transconductance block which
can be used as an electronic volume control. The
transconductance element consists of two diodes back-to-
back, whose impedance is varied by changing the amount of
current through the diodes.
The impedance of the diodes is controlled by digital circuitry
which consists of:
an oscillator with an external capacitor, C
T
, to set the
ramp frequency
c,
≈
5 x 10
-7
c
C
T
logic interface, which senses the volume up-down controls
a digital / analog converter
the control logic/debounce logic
synchronous up-down counter
To increase or decrease the GT560 impedance, the switching
mechanism can be touch sensitive contacts or a mechanical
switch. In either configuration, the switches are connected
from pin 8 to V
CC
and pin 9 to V
CC
. Any resistance (30 M
typ.),
from pin 8 or 9 to V
CC
will activate the GT560 control circuitry
and the device will change impedance levels.
BLOCK DIAGRAM
Revision Date: January 2001
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996
Web Site: www.gennum.com E-mail: hipinfo@gennum.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| GT560MCRO | Analog IC |
| GT560PLID | Analog IC |
| GT5J311(SM) | TRANSISTOR | IGBT | N-CHAN | 600V V(BR)CES | 5A I(C) | TO-263AB |
| GT5N-1PP-HU | Coaxial cable connection of Antennas, Sensors, and Communication Trunk Lines |
| GT5-1PP-HU(I) | Coaxial cable connection of Antennas, Sensors, and Communication Trunk Lines |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| GT580 | 制造商:Cornell Dubilier Electronics 功能描述:Cap Ceramic 8pF 3000V SL 0.5pF (10 X 6mm) Radial 9.5mm 85°C |
| GT590 | 制造商:Cornell Dubilier Electronics 功能描述:Cap Ceramic 9pF 3000V SL 0.5pF (10 X 6mm) Radial 9.5mm 85°C |
| GT5A-1PP-HU | 功能描述:汽車(chē)連接器 M CONN HOUSING RoHS:否 制造商:Amphenol SINE Systems 產(chǎn)品:Contacts 系列:ATP 位置數(shù)量: 型式:Female 安裝風(fēng)格: 端接類(lèi)型: 觸點(diǎn)電鍍:Nickel |
| GT5A-1PP-HU(70) | 功能描述:汽車(chē)連接器 M CONN HOUSING RoHS:否 制造商:Amphenol SINE Systems 產(chǎn)品:Contacts 系列:ATP 位置數(shù)量: 型式:Female 安裝風(fēng)格: 端接類(lèi)型: 觸點(diǎn)電鍍:Nickel |
| GT5B-1PP-HU | 功能描述:汽車(chē)連接器 M CONN HOUSING RoHS:否 制造商:Amphenol SINE Systems 產(chǎn)品:Contacts 系列:ATP 位置數(shù)量: 型式:Female 安裝風(fēng)格: 端接類(lèi)型: 觸點(diǎn)電鍍:Nickel |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。