- 您现在的位置：买卖IC网 > PDF目录297642 > TZA1020HP (NXP SEMICONDUCTORS) Pre-amplifiers for CD-RW systems PDF资料下载
参数资料
| 型号： | TZA1020HP |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 光电元器件 |
| 英文描述： | Pre-amplifiers for CD-RW systems |
| 中文描述： | 1 CHANNEL READ WRITE AMPLIFIER CIRCUIT, PQFP44 |
| 封装： | PLASTIC, QFP-44 |
| 文件页数： | 22/36页 |
| 文件大小： | 153K |
| 代理商： | TZA1020HP |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页当前第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页
2000 Oct 30
29
Philips Semiconductors
Product specication
Pre-ampliers for CD-RW systems
TZA1020; TZA1020A
11.2
Laser power control signals (alpha circuit)
The alpha circuit can be split into an alpha circuit for CD-RW, an alpha circuit for CD-R and a subtractor with additional
gain switching. The alpha circuit is active only if AMON = 1.
Table 31 Alpha scale factors
Table 32 Alpha currents; note 1
Note
1. The currents and gain factor are proportional to IRREF. The given current values are valid at IRREF = 900 A.
SCALE FACTOR
CONTROL SIGNAL
BINARY VALUE
CONTROL SIGNAL
VALUE SCALE FACTOR
gain input current
alphactrl2 to alphactrl0
000
0.50
001
0.33
010
0.25
011
0.20
100
0.17
101
0.14
110
0.12
111
0.11
current gain output
algctrl4 and Algctrl6
00
0
01
1
10
3
11
4
subtractor gain
algctrl1 and algctrl0
00
0.25
01
0.5
10
0.75
11
1.0
ALPHA CIRCUIT
CURRENTS
CONTROL SIGNAL
BINARY VALUE
CONTROL SIGNAL
VALUE CURRENT (
A)
Ialphagain
alphagain4 to alphagain0
00000
3.125
01111
50
11111
100
Iref
20
相关PDF资料 |
PDF描述 |
|---|---|
| TZA1020 | Pre-amplifiers for CD-RW systems |
| TZA1020A | Pre-amplifiers for CD-RW systems |
| TZA1024T | Data amplifier and laser supply circuit for CD audio and video optical systems ADALAS |
| TZA1025T | Data amplifier and laser supply circuit for CD audio and video optical systems ADALASLC |
| TZA1026T | Data amplifier and laser supply circuit for CD audio and video optical systems ADALASAuto |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TZA1020HP/A | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Pre-amplifiers for CD-RW systems |
| TZA1022 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Preamplifier and laser supply for CD/CDRW read-only optical systems (TRICINTA) |
| TZA1024 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:The TZA1024 is a data amplifier and laser supply circuit for voltage output mechanisms found in a wide range of audio and video CD systems. The device contains an RF amplifier and an automatic laser power control circuit. |
| TZA1024T | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Data amplifier and laser supply circuit for CD audio and video optical systems ADALAS |
| TZA1025 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Data amplifier and laser supply circuit for CD audio and video optical systems ADALASLC |
发布紧急采购，3分钟左右您将得到回复。