- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358735 > LA7209V (Sanyo Electric Co.,Ltd.) Monolithic Linear IC ISO/IEC-14443 (proximity) RF amplifier for contact-less IC card and tag PDF資料下載
參數(shù)資料
| 型號(hào)： | LA7209V |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Monolithic Linear IC ISO/IEC-14443 (proximity) RF amplifier for contact-less IC card and tag |
| 中文描述： | 單片線性集成電路ISO/IEC-14443（接近）射頻放大器，接觸式IC卡和標(biāo)簽 |
| 文件頁(yè)數(shù)： | 11/14頁(yè) |
| 文件大?。?/td> | 168K |
| 代理商： | LA7209V |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)當(dāng)前第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)
LA7209V
No.A0641-11/14
Degree of Modulation Sample Data
Input level
[mVp-p]
Output level
[Vp-p]
Data : high/low
Ra
[
Ω
]
Rb
[
Ω
]
Rd
[k
Ω
]
Antenna current
[mA]
Data : high/low
IC current
[mA]
Data : high/low
Degree of modulatio
[%]
220
4.8/3.9
10
33
1
8.0/6.0
20.7/19.2
10
220
4.8/0.0
10
33
1
8.0/0.1
20.7/19.2
100
* : This IC can support out-of-standard modulation levels by settings using the resistors Ra and Rb described above.
(3) Output level setting
The output level is set by setting the two items (the input level and the idling current) described above and the
damping resistor (Rd) between pins 22 and 23. Note that although an output amplitude (at pins 22 and 23) of about
two times the VCC voltage can be acquired, if the output voltage limit is exceeded, a collision with the pin 5 voltage
occurs and abnormal oscillation due to VCE saturation may occur. In such cases, changes to the antenna structure
(VCC midpoint supply) and/or damping of the output level will be required.
Output Damping Characteristics Sample Data
Rd
[
Ω
]
Output level
[Vp-p]
Data : high/low
Ra
[
Ω
]
Rb
[
Ω
]
Input level
[mVp-p]
Antenna current
[mA]
Data : high/low
IC current
[mA]
Data : high/low
3.9
8.5/4.6
15
4.7
180
7.8/3.7
20.5/19.0
2.2
6.9/3.5
15
4.7
180
7.8/3.7
20.5/19.0
1
4.6/2.5
15
4.7
180
7.8/3.7
20.5/19.0
3.9
8.1/4.3
22
6.8
180
7.0/3.1
20.5/19.0
2.2
6.5/3.3
22
6.8
180
7.0/3.1
20.5/19.0
1
4.1/2.3
22
6.8
180
7.0/3.1
20.5/19.0
3.9
7.5/3.5
33
10
180
6.0/2.5
20.5/19.0
2.2
5.8/2.9
33
10
180
6.0/2.5
20.5/19.0
1
3.5/1.9
33
10
180
6.0/2.5
20.5/19.0
2. Read amplifier (diode detector, bandpass filter, variable amplifier + fixed amplifier) : Data modulation from
the RF signal
(1) Level setting
The input level is determined by voltage division by the capacitors connected between pins 21 and 22 and between
pins 23 and 24 and the IC internal capacitance. However, note that the input dynamic range of pins 21 and 24 is the
same as the VCC voltage.
(2) Variable amplifier gain setting
The gain is determined by the value of the resistor (Rg) connected between pin 19 and ground.
Note that the range of values that may be used for Rg is from 4.7k
Ω
(minimum gain) to 100k
Ω
(maximum gain).
Frequency [kHz]
Bandpass Filter Characteristics
–
30
–
20
–
10
–
15
–
25
0
–
5
10
100
1000
10000
R
Variable Amplifier Gain Characteristics
0
10
20
15
5
30
25
0
10
20
30
40
50
60
70
80
90
100
Pin 19 resistance (=Rg) [k
Ω
]
G
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA7210 | IC LA7210 |
| LA7214 | VCR-Use Automatic Channel Selection Peripheral |
| LA7217M | Synchronizing Signal Separator with AFC and Sync Detector(同步信號(hào)分離器（帶AFC（自動(dòng)頻率控制）和同步檢測(cè)器 ）) |
| LA7218 | LA7218 |
| LA7220M | 3-Channel 2-Position Electronic Switch for VCR/Audio Use |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA7210 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC LA7210 |
| LA7212 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC LA7210 |
| LA7213 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LA7214 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:VCR-Use Automatic Channel Selection Peripheral |
| LA7215 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:VTR TAPE END DETECTOR |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。