전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

AD8316ACP-REEL7 데이터시트(PDF) 9 Page - Analog Devices

부품명 AD8316ACP-REEL7
상세설명  Dual Output GSM PA Controller
Download  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  AD [Analog Devices]
홈페이지  http://www.analog.com
Logo AD - Analog Devices

AD8316ACP-REEL7 데이터시트(HTML) 9 Page - Analog Devices

Back Button AD8316ACP-REEL7 Datasheet HTML 5Page - Analog Devices AD8316ACP-REEL7 Datasheet HTML 6Page - Analog Devices AD8316ACP-REEL7 Datasheet HTML 7Page - Analog Devices AD8316ACP-REEL7 Datasheet HTML 8Page - Analog Devices AD8316ACP-REEL7 Datasheet HTML 9Page - Analog Devices AD8316ACP-REEL7 Datasheet HTML 10Page - Analog Devices AD8316ACP-REEL7 Datasheet HTML 11Page - Analog Devices AD8316ACP-REEL7 Datasheet HTML 12Page - Analog Devices AD8316ACP-REEL7 Datasheet HTML 13Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 20 page
background image
REV. C
AD8316
–9–
10mV PER
VERTICAL
DIVISION
2V PER
VERTICAL DIVISION
2 s PER HORIZONTAL DIVISION
VOUT
AVERAGING = 16 SAMPLES
VPOS
INPUT
250ns
RISE TIME
1 s
RISE TIME
TPC 31. Power-On and Power-Off Response with
VSET and ENBL Grounded
RFOUT
H-P 8648B
SIGNAL
GENERATOR
0.1GHz
–60dBm
52.3
AD8316
OUT2
FLT2
VPOS
OUT1
COMM
FLT1
BSEL*
RFIN
ENBL
VSET
CFLT
CFLT
H-P 8110A
PULSE
GENERATOR
RL
1k
TEK 1103
PWR SUPPLY
TEK TDS3054
SCOPE
PULSE OUT
*BSEL HIGH
OUT1;
BSEL LOW
OUT2
AD811
TEK P6204
FET PROBE
732
49.9
TEK P6204
FET PROBE
TPC 32. Test Setup for Power-On and Power-Off
Response with VSET and ENBL Grounded
GENERAL DESCRIPTION AND THEORY
The AD8316 is a wideband logarithmic amplifier (log amp) with
two selectable outputs suitable for dual-band/dual-mode power
amplifier control. It is strictly optimized for power control appli-
cations rather than for use as a measurement device. Figure 1
shows its main features in block schematic form. The output
pins, OUT1 and OUT2, are intended to be applied directly to
the automatic power control (APC) pins of two distinct power
amplifiers. When the band select pin, BSEL, directs one of the
controller outputs to servo its amplifier toward the setpoint
indicated by the power control pin VSET, the other output is
forced to ground, disabling the second amplifier. Each output
has a dedicated filter pin, FLT1 and FLT2, that allows the
filtering and loop dynamics for each control loop to be opti-
mized independently.
Basic Theory
Logarithmic amplifiers provide a type of compression in which a
signal with a large range of amplitudes is converted to one of
a smaller range. The use of the logarithmic function uniquely
results in the output representing the decibel value of the input.
The fundamental mathematical form is
VV
V
V
OUT
SLP
IN
Z
=
log
(1)
Here VIN is the input voltage and VZ is called the intercept (volt-
age) because when VIN = VZ the argument of the logarithm is
unity, and thus the result is zero; VSLP is called the slope (volt-
age), which is the amount by which the output changes for a
certain change in the ratio (VIN/VZ).
Because log amps do not respond to power, but only to voltages,
and the calibration of the intercept is waveform dependent and
only quoted for a sine wave signal, the equivalent power response
can be written as
VV
P
P
OUT
DB
IN
Z
=
(–
)
(2)
where the input power PIN and the equivalent intercept PZ are
both expressed in dBm (thus, the quantity in the parentheses is
simply a number of decibels), and VDB is the slope expressed as
so many mV/dB. When base 10 logarithms are used, denoted by
the function log10, VSLP represents V/dec, and since a decade
corresponds to 20 dB, VSLP/20 represents the change in V/dB. For
the AD8316, a nominal (low frequency) slope of 22 mV/dB
(corresponding to a VSLP of 0.022 mV/dB
× 20 dB = 440 mV)
was chosen, and the intercept VZ was placed at the equivalent of
–74 dBV, or 199
µV rms, for a sine wave input. This corre-
sponds to a power level of –61 dBm when the net resistive part
of the input impedance of the log amp is 50
Ω. However, both
the slope and the intercept are dependent on frequency (see for
example, TPC 13 and TPC 16).
For a log amp with a slope VDB of +22 mV/dB and an inter-
cept at –61 dBm, the output voltage for an input power of
–30 dBm is 0.022
× (–30 – [–61]) = 0.682 V.
OUT2
OUT1
FLT1
VSET
325mV TO
1.4V = 49dB
FLT2
10dB
COMM
OFFSET
COMPENSATION
RFIN
10dB
10dB
10dB
DET
DET
DET
DET
DET
INTERCEPT
POSITIONING
LOW NOISE
GAIN BIAS
LOW NOISE
BAND GAP
REFERENCE
OUTPUT
ENABLE
DELAY
ENBL
VPOS
BSEL
1.35
HI-Z
HI-Z
V–I
LOW NOISE
RAIL-TO-RAIL
BUFFERS
1.35
Figure 1. Block Schematic of the AD8316


유사한 부품 번호 - AD8316ACP-REEL7

제조업체부품명데이터시트상세설명
logo
Analog Devices
AD831 AD-AD831 Datasheet
225Kb / 16P
   Low Distortion Mixer
REV. B
AD831 AD-AD831 Datasheet
436Kb / 16P
   Low Distortion Mixer
REV. C
AD8310 AD-AD8310 Datasheet
606Kb / 24P
   Fast, Voltage-Out DC-440 MHz, 95 dB Logarithmic Amplifier
REV. D
AD8310 AD-AD8310 Datasheet
530Kb / 24P
   Fast, Voltage-Out DC-440 MHz, 95 dB Logarithmic Amplifier
Rev. E
AD8310-EVAL AD-AD8310-EVAL Datasheet
606Kb / 24P
   Fast, Voltage-Out DC-440 MHz, 95 dB Logarithmic Amplifier
REV. D
More results

유사한 설명 - AD8316ACP-REEL7

제조업체부품명데이터시트상세설명
logo
Analog Devices
AD8315 AD-AD8315 Datasheet
1Mb / 20P
   50 dB GSM PA Controller
REV. B
AD8315 AD-AD8315_16 Datasheet
447Kb / 22P
   50 dB GSM PA Controller
AD8311 AD-AD8311 Datasheet
734Kb / 24P
   50 dB GSM PA Controller
REV. 0
AD8315 AD-AD8315_06 Datasheet
552Kb / 24P
   50 dB GSM PA Controller
REV. C
AD8311 AD-AD8311_15 Datasheet
505Kb / 24P
   50 dB GSM PA Controller
REV. A
AD8315 AD-AD8315_15 Datasheet
553Kb / 24P
   50 dB GSM PA Controller
REV. C
logo
National Semiconductor ...
LMV242 NSC-LMV242 Datasheet
560Kb / 16P
   Dual Output, Quad-Band GSM/GPRS Power Amplifier Controller
LMV248 NSC-LMV248 Datasheet
289Kb / 11P
   Dual Band GSM Power Controller
logo
Texas Instruments
LMV242 TI-LMV242_15 Datasheet
1,009Kb / 25P
[Old version datasheet]   LMV242 Dual Output, Quad-Band GSM/GPRS Power Amplifier Controller
logo
Radiometrix Ltd
GTC01 RADIOMETRIX-GTC01 Datasheet
401Kb / 11P
   GSM Telemetry Controller
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com