參數(shù)資料
型號： TZA1026
廠商： NXP Semiconductors N.V.
英文描述： Data amplifier and laser supply circuit for CD audio and video optical systems ((ADALASAuto)(應(yīng)用在CD音頻和視頻光學(xué)系統(tǒng)中的數(shù)據(jù)放大器和激光電源電路)
中文描述： 數(shù)據(jù)放大器和激光CD音頻和視頻（（ADALASAuto）（應(yīng)用在CD光學(xué)系統(tǒng)的供電線路音頻和視頻光學(xué)系統(tǒng)中的數(shù)據(jù)放大器和激光電源電路）
文件頁數(shù)： 16/20頁
文件大?。?/td> 134K
代理商： TZA1026
1998 Oct 30
5
Philips Semiconductors
Product specication
Data amplier and laser supply circuit for CD
audio and video optical systems (ADALASAuto)
TZA1026
PINNING
FUNCTIONAL DESCRIPTION
The TZA1026 consists of two sections, the RF amplifier
and the automatic laser power control circuit.
RF amplier
The RF amplifier consists of a current input amplifier, an
equalizer/bandwidth section and a transimpedance output
amplifier with an external feedback resistor of 10 k
(fixed
value).
SYMBOL
PIN
DESCRIPTION
LD
1
current output to laser diode
VDD(L)
2
laser supply voltage
CFIL
3
external lter capacitor
MON
4
laser monitor diode input
DIN
5
central diode input
GND
6
ground
PWRON
7
power-on select input
CMFB
8
common mode feedback voltage
input
RFFB
9
external RF feedback resistor
RFEQO
10
RF amplier output
CDRW
11
gain select input for CD-A/V, CD-R/W
EQSEL
12
equalizer/speed select input
(n = 1, 2 or 4)
VDD
13
supply voltage
RGADJ
14
external laser supply gain adjust
resistor
Fig.2 Pin configuration.
handbook, halfpage
MBK890
TZA1026
1
2
3
4
5
6
7
8
14
13
12
11
10
9
LD
VDD(L)
CFIL
MON
DIN
GND
PWRON
CMFB
RFFB
RFEQO
CDRW
EQSEL
VDD
RGADJ
The gain of the RF amplifier can be adjusted by the
external input resistors. Fig.3 shows the simplified
schematic which can be used to determine the RF gain.
The signal is AC coupled to the RF amplifier. The formula
to determine the gain is shown below:
(1)
where:
GRF is the RF amplifier gain
n is the number of input resistors
Ztr(RF) is the transimpedance of the amplifier ()
R2 is the value of the input resistors(
).
The gain can be increased by a factor 4 by making
pin CDRW HIGH. The value of Ztr(RF) is 9.8 k for CD-A/V
(CDRW = LOW) and 38 k
for CD-R/W (CDRW = HIGH).
The equalizer/bandwidth section can be switched between
n = 1, n = 2 (inclusive the corresponding equalizer) or
n = 4 (inclusive the required bandwidth limitation) times
speed.
The DC output level of the amplifier can be set by applying
a DC voltage on the common mode feedback pin CMFB.
Since the input signal is AC-coupled the RF output voltage
will swing (symmetrically) around this DC level.
The coupling of the TZA1026 to the signal processor
(SAA7326) can be either AC or DC. When an AC-coupling
is chosen (see Fig.8) the minimum supply voltage can be
applied. When a DC-coupling is chosen (see Fig.9) a
minimum supply voltage of 2.8 V is required.
G
RF
n
–
Z
tr RF
()
R2
------------------
×
=
Fig.3 Simplified schematic.
handbook, halfpage
CDRW
RFEQO
C2
10 k
Vin
R2(1)
R2(2)
R2(n)
Vin
MGL530
相關(guān)PDF資料
PDF描述
TZB6359J51C INTERCONNECTION DEVICE
TZB6559J10 INTERCONNECTION DEVICE
TZB6559J51C INTERCONNECTION DEVICE
TZB6559J51 INTERCONNECTION DEVICE
TZB8359J10C INTERCONNECTION DEVICE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TZA1026T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Data amplifier and laser supply circuit for CD audio and video optical systems ADALASAuto
TZA1026T/V2,118 功能描述:IC DATA AMPLIFIER 14-SOIC RoHS:是 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝
TZA1027 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Analog current buffer for CD-R and CD-RW systems
TZA1027HL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Analog current buffer for CD-R and CD-RW systems
TZA1032 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Laser driver and controller circuit
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*