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參數(shù)資料
| 型號： | TA1372FNG |
| 廠商： | Toshiba Corporation |
| 英文描述： | VHF Band RF Modulator IC for VCRs and Set top boxes |
| 中文描述： | 甚高頻波段射頻調(diào)制器集成電路錄像機和機頂盒 |
| 文件頁數(shù)： | 6/15頁 |
| 文件大?。?/td> | 190K |
| 代理商： | TA1372FNG |
TA1372FNG
2003-12-25
6
Explanation in each mode
1. Reference signal Mode selection (Pin 1)
As reference signal, either 4-MHz crystal resonator can be connected to this pin for internal oscillation or
external signal can be input. Reference signal Mode can be selected pin 1. 4MHz and 3.579545MHz can be
used for the frequency of an external input signal.
Voltage of pin 1
Reference signal mode
High or Open
4MHz External input
Middle
3.579545MHz External input
Low
Internal oscillation with 4MHz X
’
tal
2. Test mode selection (Pin 5)
Pin 5 is also used for switching test mode. Normally this pin is used at 0 V DC (used by AC coupling).
White clip mode is prepared into test mode. ( e.g. when modulation characteristics for near-100%
modulation are being checked.)
Voltage of pin 5
Mode
High
Test mode
Middle
White Clip through mode
(Test mode)
Low or Open
Normal mode
If the voltage of a terminal 5 becomes more than 1.2V, it will change to the test mode.
Be careful of the influence of a noise etc.
3. Carrier off mode selection (Pin 6)
Pin 6 is selection of Carrier off-mode and Antenna SW driver output. In Carrier off mode, Supply current is
saved by stopping Sound VCO.
Voltage of pin 6
RF&sound oscillation
Antenna SW driver output (pin 14)
High
ON
High
Low or Open
OFF
Low
When changing a carrier ON, RF output is muted the time of about 130 msec. Mute of RF output is for
avoiding the influence of the noise by RF carrier frequency being unstable. At the time of Channel
switching, RF output is muted similarly.
4. Channel selection (Pin 8)
Pin 8 is the selection of RF VCO oscillation frequency.
Voltage of pin 8
Channel
High or Open
USA 3ch (61.25MHz)
Low
USA 4ch (67.25MHz)
5. P/S ratio set up (Pin 16)
P / S ratio is set up by connecting resistance with pin 16 between GND. P / S ratio can be set as the range of
–9dB to -17dB.
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| TA1372FNG(EL,M) | 功能描述:射頻無線雜項 VHF Modulator w/ PLL RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
| TA1375FG | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Single Conversion Tuner for Digital TV / CATV |
| TA1383AFG | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:NTSC Chroma Decoder, Multi-Point Scan Sync Processor, H/V Frequency Counter IC for Color TV |
| TA1384FNG | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Mixer/Oscillator and PLL IC for TV/VCR Tuner |
| TA139 | 制造商:pico Technology 功能描述:Pack of 10 Digital test clips (8 x red, 2 x black) 制造商:pico Technology 功能描述:CLIPS TEST PK X10 PICOSCOPE 2205-MSO 制造商:pico Technology 功能描述:CLIPS, TEST, PK X10, PICOSCOPE 2205-MSO 制造商:pico Technology 功能描述:CLIPS, TEST, PK X10, PICOSCOPE 2205-MSO; SVHC:No SVHC (19-Dec-2012); Accessory Type:Test Clips; For Use With:PicoScope 2205 ;RoHS Compliant: NA |
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