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參數(shù)資料
| 型號(hào)： | SA606 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | RES 6.19K OHM 1/16W .5% 0603 SMD |
| 中文描述： | 低電壓高性能混頻器調(diào)頻IF系統(tǒng) |
| 文件頁(yè)數(shù)： | 4/19頁(yè) |
| 文件大?。?/td> | 214K |
| 代理商： | SA606 |
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Philips Semiconductors
Product specification
SA606
Low-voltage high performance mixer FM IF system
1997 Nov 07
4
AC ELECTRICAL CHARACTERISTICS
(Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
TYP
-50
62
0.3
1.1
1.8
90
+1.5
1.5
0.3
1.5
0.3
130
UNITS
MIN
-35
MAX
THD
S/N
Total harmonic distortion
Signal-to-noise ratio
RF RSSI output, R
9
= 2k
dB
dB
V
V
V
dB
dB
k
k
k
k
No modulation for noise
RF level = -118dBm
RF level = -68dBm
RF level = -23dBm
.80
1.80
2.50
.70
1.20
RSSI range
RSSI accuracy
IF input impedance
IF output impedance
Limiter input impedance
Limiter output impedance
Limiter output voltage
Pin 18
Pin 16
Pin 14
Pin 11
Pin 11
1.3
1.3
mV
RMS
RF/IF section (int LO)
Audio level
System RSSI output
System SINAD sensitivity
3V = V
CC
, RF level = -27dBm
3V = V
CC
, RF level = -27dBm
RF level = -117dBm
120
2.2
12
mV
RMS
V
dB
CIRCUIT DESCRIPTION
The SA606 is an IF signal processing system suitable for second IF
systems with input frequency as high as 150MHz. The bandwidth of
the IF amplifier and limiter is at least 2MHz with 90dB of gain. The
gain/bandwidth distribution is optimized for 455kHz, 1.5k
source
applications. The overall system is well-suited to battery operation
as well as high performance and high quality products of all types.
The input stage is a Gilbert cell mixer with oscillator. Typical mixer
characteristics include a noise figure of 6.2dB, conversion gain of
17dB, and input third-order intercept of -9dBm. The oscillator will
operate in excess of 200MHz in L/C tank configurations. Hartley or
Colpitts circuits can be used up to 100MHz for xtal configurations.
Butler oscillators are recommended for xtal configurations up to
150MHz.
The output impedance of the mixer is a 1.5k
resistor permitting
direct connection to a 455kHz ceramic filter. The input resistance of
the limiting IF amplifiers is also 1.5k
. With most 455kHz ceramic
filters and many crystal filters, no impedance matching network is
necessary. The IF amplifier has 43dB of gain and 5.5MHz
bandwidth. The IF limiter has 60dB of gain and 4.5MHz bandwidth.
To achieve optimum linearity of the log signal strength indicator,
there must be a 12dB(v) insertion loss between the first and second
IF stages. If the IF filter or interstage network does not cause
12dB(v) insertion loss, a fixed or variable resistor or an L pad for
simultaneous loss and impedance matching can be added between
the first IF output (Pin 16) and the interstage network. The overall
gain will then be 90dB with 2MHz bandwidth.
The signal from the second limiting amplifier goes to a Gilbert cell
quadrature detector. One port of the Gilbert cell is internally driven
by the IF. The other output of the IF is AC-coupled to a tuned
quadrature network. This signal, which now has a 90
°
phase
relationship to the internal signal, drives the other port of the
multiplier cell.
The demodulated output of the quadrature drives an internal op
amp. This op amp can be configured as a unity gain buffer, or for
simultaneous gain, filtering, and 2nd-order temperature
compensation if needed. It can drive an AC load as low as 5k
with
a rail-to-rail output.
A log signal strength completes the circuitry. The output range is
greater than 90dB and is temperature compensated. This log signal
strength indicator exceeds the criteria for AMPs or TACs cellular
telephone. This signal drives an internal op amp. The op amp is
capable of rail-to-rail output. It can be used for gain, filtering, or
2nd-order temperature compensation of the RSSI, if needed.
NOTE:
dB(v) = 20log V
OUT
/V
IN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SA607 | Low-voltage high performance mixer FM IF system |
| SA607D | Low-voltage high performance mixer FM IF system |
| SA608 | RES 634 OHM 1/16W .5% 0603 SMD |
| SA608D | Low voltage high performance mixer FM IF system |
| SA608N | Low voltage high performance mixer FM IF system |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SA-606 | 制造商:COOPER INDUSTRIES 功能描述:UNV WRNCH STANDARD 3/4 FMALE S |
| SA606D | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage high performance mixer FM IF system |
| SA606D,118 | 功能描述:上下轉(zhuǎn)換器 LV HI PERF MIXER FM IF SYSTEM 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(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-128 |
| SA606D,602 | 功能描述:射頻無線雜項(xiàng) LV HI PERF MIXER FM IF SYSTEM 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 |
| SA606D/01 | 功能描述:上下轉(zhuǎn)換器 LV NB FM IF RCVR SYS 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(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-128 |
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