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參數(shù)資料
| 型號： | HSP50216KI |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Four-Channel Programmable Digital DownConverter |
| 中文描述： | TELECOM, CELLULAR, BASEBAND CIRCUIT, PBGA196 |
| 封裝： | BGA-196 |
| 文件頁數(shù)： | 21/53頁 |
| 文件大?。?/td> | 561K |
| 代理商： | HSP50216KI |
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21
AGC
The loop gain register values adjust the response/settling
time of the AGC loop. There are four values in two sets.
Each set has both an attack and a decay gain. This allows
asymmetric adjustment for applications such as VOX
systems where the signal turns on and off. In these
applications, the gains would be set for fast attack and slow
decay so that the part decreases the gain quickly when the
signal turns on, but increases the gain slowly when the
signal turns off (in anticipation of it turning back on shortly).
Setting both the attack and decay gain values to zero
disables the AGC (sets it as programmable gain stage).
The loop gains are floating point with a 4-bit mantissa
(0.MMMM) and 4-bit exponent (2
EEEE
). The gains through
the AGC are:
S
S
EXP=2
NNNN
MANTISSA =
01.XXXXXXXXXXXXXX
LIMIT
DET
L
L
LIMIT
DET
R
24
IFIR
QFIR
QAGC
IAGC
S
U
T
MAGNITUDE
(RANGE = 0 TO 2.32887)
S
L
M
E
AGCGNSEL
EXP
LIMIT
DET
UPPER LIMIT
LOWER LIMIT
μ
P
SERIAL
OUT
MSB = 0
AGC LOOP FILTER
AGC MULTIPLIER/SHIFTER
24
24
24
24
24
CARTESIAN
TO
POLAR
COORDINATE
CONVERTER
(G = 1.64676)
4
16
L
18
R
19
16
4
4
A
A
L
M
E
16
28
AGC ERROR SCALING
AGC
ERROR
DETECTOR
MSB = 0
(RANGE = 0 TO 1)
Controlled via microprocessor interface.
FIGURE 1. AGC FUNCTIONAL BLOCK DIAGRAM
(RANGE = -2.18344 TO 2.18344)
+
M
U
X
μ
P
AGC
LOAD
EN
(11 MANTISSA
4 EXPONENT)
MANTISSA
(
16
HSP50216
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HSP50216KIZ | 功能描述:上下轉(zhuǎn)換器 MULTI-CH PROGRAM CONV BGA PKG IND RoHS:否 制造商:Texas Instruments 產(chǎn)品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PQFP-128 |
| HSP50306 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Digital QPSK Demodulator |
| HSP50306 WAF | 制造商:Intersil Corporation 功能描述: |
| HSP50306_04 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Digital QPSK Demodulator |
| HSP50306SC-25 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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