參數(shù)資料
型號(hào)： TCM4400ETQFP
廠商： Texas Instruments, Inc.
英文描述： GSM/DCS BASEBAND AND VOICE A/D AND D/A RF INTERFACE CIRCUIT
中文描述： 的GSM / DCS的基帶和語(yǔ)音的A / D和D / A射頻接口電路
文件頁(yè)數(shù)： 57/64頁(yè)
文件大?。?/td> 888K
代理商： TCM4400ETQFP
TCM4400E
GSM/DCS BASEBAND AND VOICE A/D
AND D/A RF INTERFACE CIRCUIT
SLWS082A – JULY 1999 – REVISED MARCH 2000
57
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
automatic frequency control registers (1 and 2)
The content of the APC RAM describes the shape of the ramp-up and ramp-down control; see Table 30.
Table 30. APC Ramp Control
ááááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááá
ááááááááááááááááááááááááááááááá
ááááááá
Actual shape values (five bits long) are contained in the shape D/A converter input register as shown in
Table 31.
APCRAM: AUTOMATIC POWER CONTROL RAM
áááááááááá
áááááááááá
áááááááááá
áááááááááá
ADDRESS: 17 (64 Words)
ááá
ááá
ááá
ááá
W
<—VALUE AT RESET
áááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááá
RDWNWORD62 (5BIT)
RUP WORD62 (5 BIT)
1
0
0
0
1
0
RDWNWORD63 (5BIT)
X
X
X
RUP WORD63 (5 BIT)
áááááááááááááááááááááááá
1
0
0
<—ACCESS TYPE
0
1
0
W
W
W
X
W
W
W
W
W
W
X
W
X
X
X
X
X
Table 31. Shape DAC Input Register
áááááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááááá
ááááááááááááááááá
ááááááá
BIT 4–0:
Input of the 5-bit APC DAC.
RESERVD
R = 0
RESERVD
RESERVD
R = 0
RESERVD
ááááááááááááááááááááááááá
ááááááááááááááááááááááááá
RESERVD
BIT4
BIT3
BIT2
BIT1
R/W
BIT0
R/W
1
0
<–ACCESS TYPE
0
1
0
1/0
0
0
R = 0
R = 0
R = 0
R/W
R/W
0
0
R/W
0
0
0
0
0
0
<–VALUE AT RESET
RESERVD:
Reserved bits for testing
AGC control register
The AGC control register is 10-bits wide and controls operations of the analog AGC circuit as shown in Table 32.
Table 32. Analog AGC Gain Control Register
áááááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááááá
áááááááá
ááááááááááá
BIT 9 to 0:
Input of the 10-bit AAGC DAC.
AUXAGC: AUTOMATIC GAIN CONTROL REGISTER
ADDRESS: 19
R/W
R/W
BIT9
BIT8
BIT7
BIT6
R/W
BIT5
ááááááááááááááááá
BIT4
BIT3
BIT2
BIT1
R/W
BIT0
1
<–ACCESS TYPE
0
0
1
1
1/0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
ááááááááááááááááááá
RESERVD:
Reserved bits testing.
相關(guān)PDF資料
PDF描述
tcm5003d 1/4 Inch 330k Pixel Color Image Sensor(1/4英寸330k像素彩色圖象傳感器)
TCM5089 TONE ENCODER
TCM5092 TONE ENCOER
TCM5094 TONE ENCOER
TCM50 TONE ENCODER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TCM46T 制造商:MINICIR 功能描述:New
TCM4910 制造商:TI 制造商全稱:Texas Instruments 功能描述:PCM U-LOW COMPANDING CODES
TCM4949VPA 制造商:ON Semiconductor 功能描述:
TCM50 制造商:TI 制造商全稱:Texas Instruments 功能描述:TONE ENCODER
TCM5087 制造商:TI 制造商全稱:Texas Instruments 功能描述:TONE ENCODER
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

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

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

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*