- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98150 > T4260ILS (ATMEL CORP) AUDIO TUNER, PDSO44 PDF資料下載
參數(shù)資料
| 型號： | T4260ILS |
| 廠商： | ATMEL CORP |
| 元件分類： | 調(diào)諧器 |
| 英文描述： | AUDIO TUNER, PDSO44 |
| 封裝： | SSO-44 |
| 文件頁數(shù)： | 10/30頁 |
| 文件大?。?/td> | 299K |
| 代理商： | T4260ILS |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁當前第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁
18
T4260
4528I–AUDR–08/04
FM Mixer
In the FM mixer stage, the FM reception frequency is down-converted to the IF
frequency. The VCO frequency is used as LO frequency for the mixer.
PLL Loop Filter
The PLL loop filter selection for AM and FM mode can be controlled by bit 145 as given
in Table 19.
Fractional Mode
The activated fractional mode (bit 144 = 0) in connection with the direct shift (bit 32 = 0)
allows fast frequency changes (with the help of the 2-bit shift) with a four times higher
step frequency. After the frequency change, the normal step frequency is active again.
If the fractional mode is deactivated (bit 144 = 1) and direct shift mode is active,
(bit 32 = 0) the VCO frequency is set to the next lower frequency which is many times
the amount frequency of 4 times step frequency. This means that the 2 shifted bits of the
active N-Divider are not used in this mode. The shift bits are interpreted as logic 0.
The fractional mode with direct shift mode deactivated (bit 32 = 1) allows normal fre-
quency changes with a step frequency of 12.5 kHz.
Table 18. Divider Factor of the AM Prescaler
Divider AM Prescaler
B143
B142
B141
B140
Divide by 2
0
Divide by 3
0
1
Divide by 4
0
1
0
Divide by 5
0
1
Divide by 6
0
1
0
Divide by 7
0
1
0
1
Divide by 8
0
1
0
Divide by 9
0
1
Divide by 10
1
x
Table 19. Loop Filter Operating Mode
PDAM/PDFM
B145
PDFM active
0
PDAM active
1
Table 20. Fractional Mode
Fractional
B144
ON
0
OFF
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| T555200-PAE | SPECIALTY CONSUMER CIRCUIT, PXMA |
| T6B70BFNG | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| T6F18 | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| T6N71B | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| T6N71QFP | SPECIALTY CONSUMER CIRCUIT, PQFP44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T4260-ILSH | 功能描述:射頻無線雜項 COM.RADIO-AM/FM FE DIG.CONCEPT 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 |
| T428P107M028AH | 功能描述:鉭質(zhì)電容器-固體SMD RoHS:否 制造商:AVX 電容:100 uF 電壓額定值:20 V ESR: 容差:10 % 外殼代碼 - in:2917 外殼代碼 - mm:7343 高度:4.1 mm 制造商庫存號:E Case 工作溫度范圍:- 55 C to + 125 C 系列:TBM 產(chǎn)品:Tantalum Solid Low ESR Commercial Grade 封裝:Bulk |
| T428P156M050AH | 功能描述:鉭質(zhì)電容器-固體SMD RoHS:否 制造商:AVX 電容:100 uF 電壓額定值:20 V ESR: 容差:10 % 外殼代碼 - in:2917 外殼代碼 - mm:7343 高度:4.1 mm 制造商庫存號:E Case 工作溫度范圍:- 55 C to + 125 C 系列:TBM 產(chǎn)品:Tantalum Solid Low ESR Commercial Grade 封裝:Bulk |
| T428P156M050AH6110 | 功能描述:鉭質(zhì)電容器-固體SMD 50volts 15uF 20% RoHS:否 制造商:AVX 電容:100 uF 電壓額定值:20 V ESR: 容差:10 % 外殼代碼 - in:2917 外殼代碼 - mm:7343 高度:4.1 mm 制造商庫存號:E Case 工作溫度范圍:- 55 C to + 125 C 系列:TBM 產(chǎn)品:Tantalum Solid Low ESR Commercial Grade 封裝:Bulk |
| T428P156M050AHT500 | 制造商:KEMET Corporation 功能描述:CAP TANT 15UF 50V 20% 2824 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。