信號(hào)源
TSG4100A 系列 RF 信號(hào)發(fā)生器以入門級(jí)射頻信號(hào)發(fā)生器的價(jià)格提供中等射頻性能和高達(dá) 200MHz 的超寬調(diào)制帶寬。 方便的現(xiàn)場(chǎng)升級(jí)軟件允許工程師輕松將設(shè)備的模擬調(diào)制功能升級(jí)為矢量調(diào)制和數(shù)字調(diào)制功能,從而提供靈活的配置和的 CAPEX 保護(hù)。
用于模擬和數(shù)字應(yīng)用的 RF 信號(hào)發(fā)生器
TSG4100A 系列 RF 信號(hào)發(fā)生器同時(shí)具有模擬和更的矢量和數(shù)字調(diào)制功能,成本非常低。工程師可以簡(jiǎn)便地從模擬信號(hào)轉(zhuǎn)向矢量信號(hào),從而提供靈活的配置和的 CAPEX 保護(hù)。這些低成本 RF 信號(hào)發(fā)生器內(nèi)置支持常見(jiàn)的矢量調(diào)制方案,包括 ASK、QPSK、DQPSK、π/4 DQPSK、8PSK、FSK、CPM、QAM(4 至 256)、8VSB 和 16VSB。
內(nèi)部帶寬高達(dá) 6MHz 的射頻信號(hào)發(fā)生器
憑借創(chuàng)新的 I/Q 調(diào)制架構(gòu),用戶友好的 TSG4100A 系列提供快速波形生成并支持純數(shù)字?jǐn)?shù)據(jù)的播放。儀器以高達(dá) 6 MHz 的符號(hào)速率把數(shù)字符號(hào)映射到選定的 I/Q 星座中,把結(jié)果傳送到選定的脈沖整形濾波器中,生成以 125 MHz 實(shí)時(shí)更新的終波形。然后這個(gè)基帶信號(hào)使用標(biāo)準(zhǔn) IQ 調(diào)制技術(shù)調(diào)制到 RF 載波上。
使用 RF 信號(hào)發(fā)生器的 OCXO 時(shí)基
TSG4100A 系列儀器使用恒溫箱控制的 SC 切割晶振時(shí)基,穩(wěn)定性提高了 100 倍 (<±0.002ppm),與使用 TCXO 時(shí)基的儀器相比,近距離相位噪聲降低了 100 倍。還可以為研發(fā)應(yīng)用提供的時(shí)效 (<±0.05ppm)。
TSG4100A 射頻信號(hào)發(fā)生器上的 RF 信號(hào)播放
TSG4100A RF 信號(hào)發(fā)生器具有使用外部 IQ 信號(hào)的選項(xiàng),該選項(xiàng)可為高載波頻率(如 400MHz 以上的載波頻率)提供 200MHz 以上的射頻調(diào)制帶寬。了解如何使用通過(guò) RSA 捕獲的 RF 信號(hào)以及 SourceXpress 應(yīng)用程序格式化基帶 IQ 信號(hào),然后了解如何設(shè)置 AFG31000 任意函數(shù)發(fā)生器以驅(qū)動(dòng) TSG 上的 IQ 輸入。
使用AFG3100再TSG4100A上播放捕捉的RF信號(hào)
RF 信號(hào)發(fā)生器常見(jiàn)問(wèn)題
RF 信號(hào)發(fā)生器的用途是什么?
射頻 (RF) 信號(hào)發(fā)生器用于創(chuàng)建具有已知特性的連續(xù)射頻信號(hào),以測(cè)試電路設(shè)計(jì),主要是通信設(shè)備中的電路設(shè)計(jì)。RF 信號(hào)發(fā)生器本身不進(jìn)行任何測(cè)量,它只是為其他儀器設(shè)置正確的條件來(lái)測(cè)量被測(cè)設(shè)備。
RF 發(fā)生器如何工作?
RF 信號(hào)發(fā)生器通常是一種信號(hào)源,用于測(cè)試開(kāi)發(fā)用于 RF 通信(例如無(wú)線和蜂窩通信、雷達(dá)、電子戰(zhàn)等)的電路。工程師可以使用系統(tǒng)控制設(shè)置幅度、頻率并對(duì)信號(hào)應(yīng)用調(diào)制。
如何生成 RF 頻率?
生成 RF 頻率的簡(jiǎn)單方法是使用 TSG4100A RF 信號(hào)發(fā)生器的前面板。在將 RF 信號(hào)發(fā)生器連接至被測(cè)設(shè)備 (DUT) 前,您可以輕松設(shè)置頻率、幅度、調(diào)制和許多其他信號(hào)特性。
信號(hào)發(fā)生器和函數(shù)發(fā)生器有何區(qū)別?
信號(hào)發(fā)生器是任何產(chǎn)生電子信號(hào)的設(shè)備。矢量信號(hào)發(fā)生器專門使用模擬和數(shù)字調(diào)制方案以 QAM、QPSK、FSK、BPSK 和 OFDM 等格式創(chuàng)建射頻信號(hào)。矢量信號(hào)發(fā)生器通常用于接收機(jī)靈敏度測(cè)試。
函數(shù)發(fā)生器具有其可播放的預(yù)設(shè)波形或模式列表。操作員可以更改波形參數(shù),例如播放速度、幅度和偏置,或添加基本失真或調(diào)制。
信號(hào)發(fā)生器的類型有哪些?
信號(hào)發(fā)生器的類型有很多,包括函數(shù)發(fā)生器、任意波形發(fā)生器和矢量信號(hào)發(fā)生器。
查看下表了解每種類型之間的差異。
信號(hào)發(fā)生器 | 模擬和數(shù)字電子信號(hào)源的通用類別名稱。 |
函數(shù)發(fā)生器 | 如需正弦波、三角波等常見(jiàn)波形,則通常使用信號(hào)發(fā)生器。 |
任意函數(shù)發(fā)生器 | 函數(shù)發(fā)生器能夠產(chǎn)生任意編譯波形。 |
任意波形發(fā)生器 | 如需自定義編譯波形(而不是預(yù)設(shè)常用波形),則主要使用任意波形發(fā)生器。 |
RF 信號(hào)發(fā)生器 | RF 信號(hào)發(fā)生器用于無(wú)線應(yīng)用,通常提供正常的模擬調(diào)制,例如 AM、FM 和 PM。 |
(RF) 矢量信號(hào)發(fā)生器 | 對(duì)于數(shù)字通信應(yīng)用,RF 矢量信號(hào)發(fā)生器支持對(duì) RF 載波進(jìn)行模擬和矢量調(diào)制。 |
Specifications
All specifications are guaranteed unless noted otherwise. All specifications apply to all models unless noted otherwise.Frequency
BNC output, all models
DC to 62.5 MHz
N-type outputs
TSG4102A
950 kHz to 2.0 GHz
TSG4104A
950 kHz to 4.0 GHz
TSG4106A
950 kHz to 6.0 GHz
Frequency resolution
1 μHz at any frequency
Switching speed
<8 ms (to within 1 ppm)
Frequency error
<(10–18 + time-base error) × fc
Frequency stability
1 × 10–11 (1 s Allan variance)
Front panel BNC output
Frequency range
DC to 62.5 MHz
Amplitude
1.00 VRMS to 0.001 VRMS (-47 dBm to +14.96 dBm)
Offset
±1.5 VDC
Offset resolution
5 mV
Maximum excursion
1.817 V (amplitude + offset)
Amplitude resolution
<1 %
Amplitude accuracy
±0.7 dB
Harmonics, typical
<–40 dBc
Spurious, typical
<–65 dBc
Output coupling
DC, 50 Ω ±2%
Impedance
50 Ω
Reverse protection
±5 VDC
VSWR, typical
< 1.6 :1
Front panel N-type output
Power output
TSG4102A
+16.5 dBm to –110 dBm
TSG4104A
+16.5 dBm to –110 dBm (<3 GHz)
TSG4106A
+16.5 dBm to –110 dBm (<4 GHz) +10 dBm to –110 dBm (4-6 GHz)
Voltage output
TSG4102A
1.5 VRMS to 0.7VRMS
TSG4104A
1.5 VRMS to 0.7 μVRMS (<3 GHz)
TSG4106A
1.5 VRMS to 0.7 μVRMS (<4 GHz)
Amplitude resolution
0.01 dBm
Amplitude accuracy
CW, 50 Ω load (dB, typical)
CW, 18 °C to 28 °C >10 dBm 10 to -30 dBm -30 to -60 dBm -60 to -100 dBm <-100 dBm 10 MHz to 0.1 GHz ±0.2 ±0.25 ±0.35 ±0.45 ±0.6 0.1 GHz to 2 GHz ±0.15 ±0.15 ±0.25 ±0.35 ±0.6 2 GHz to 4 GHz ±0.3 ±0.2 ±0.35 ±0.6 ±0.8 4 GHz to 6 GHz NA ±0.3 ±0.4 ±0.75 ±1.25 CW, 50 Ω load (dB, max)
Level range: +5 to -30 dBm (max) +5 to -30 dBm (typical) Temperature: 18 °C to 28 °C 5 °C to 40 °C 5 °C to 40 °C 10 MHz to 0.1 GHz ±0.6 ±1.0 ±0.7 0.1 GHz to 2 GHz ±0.6 ±1.0 ±0.6 2 GHz to 4 GHz ±0.6 ±1.0 ±0.7 4 GHz to 6 GHz ±1 ±1.5 ±0.9
Impedance
50 Ω
Output coupling
AC, 50 Ω
VSWR, typical
<1.5 (2 MHz to 2 GHz) <1.8 (2 GHz to 6 GHz)
Reverse protection
30 VDC, +25 dBm
IQ modulation output level accuracy
Output amplitude is -5 dBm.
Temperature: 18 °C to 28 °C 5 °C to 40 °C Fc: Typical (dB) Max (dB) Typical (dB) <2 GHz ±0.1 ±0.4 ±0.4 2 GHz to 4 GHz ±0.2 ±0.6 ±0.4 4 GHz to 6 GHz ±0.4 ±0.8 ±0.7
Spectral purity of the RF output
Subharmonics
None
Harmonics, maximum
Output level<0 dBm, 1 GHz CW signal
TSG4102A and TSG4104A
< -38 dBc
TSG4106A
< -30 dBc
Harmonics, typical (output level < 0 dBm)
< -35 dBc, CW , Fc < 2 GHz
Spurious (typical)
Output level -10 dBm, CW
< -68 dBc
>10 kHz from carrier in 950 kHz to 1 GHz
< -60 dBc
>10 kHz from carrier in 1 GHz to 2 GHz
< -55 dBc
>10 kHz from carrier in 2 GHz to 4 GHz
< -55 dBc
>10 kHz from carrier in 4 GHz to 6 GHz
Residual FM, typical
1 Hz rms (300 Hz to 3 kHz bandwidth)
Residual AM, typical
0.006 % rms (300 Hz to 3 kHz bandwidth)
SSB phase noise
Output level is +5 dBm at 18 °C to 28 °C.
Carrier Offset from carrier, typical (dBc/Hz) 1 kHz 10 kHz 20 kHz 1 MHz 1 GHz -102 -110 -113 -124 2 GHz -96 -104 -107 -118 3 GHz -93 -102 -105 -120 6 GHz -87 -96 -99 -114
SSB phase noise at 1 GHz carrier, maximum (output level +5 dBm, 5 ℃ to 40 ℃)
1 kHz offset
–95 dBc/Hz
10 kHz offset
–106 dBc/Hz
20 kHz offset
–107 dBc/Hz
1 MHz offset
–120 dBc/Hz
2 GHz offset
–118 dBc/Hz
>3 GHz offset
–120 dBc/Hz


Phase setting (front panel outputs)
Maximum phase step
±360o
Phase resolution
0.01o (DC to 100 MHz) 0.1o (100 MHz to 1 GHz) 1.0o (1 GHz to 6 GHz)
OCXO time-base (Option M00 or Option E1)
Oscillator type
Oven-controlled, 3rd OT, SC-cut crystal
Initial accuracy at calibration (20 minute warm-up, at 18 oC to 28 oC)
<±0.02 ppm
Temperature drift (0 oC to 40 oC)
<±0.003 ppm
Aging
<±0.05 ppm/year
VCXO time base (Option M01)
Initial accuracy at calibration (20 minute warm-up, at 18 oC to 28 oC)
<±0.5 ppm
Temperature drift (0 oC to 40 oC)
<±5.0 ppm
Aging
<±3.0 ppm/year
Time-base input
Frequency
10 MHz, ±2 ppm
Amplitude
0.5 VP-P to 4 VP-P (–2 dBm to +16 dBm)
Input impedance
50 Ω, AC coupled
Time-base output
Frequency
10 MHz, sine
Source
50 Ω, DC transformer coupled
Amplitude
>7.5 dBm
Internal modulation source
Waveforms
Sine, ramp, saw, square, pulse, noise
Sine THD
–74 dBc (typical at 20 kHz)
Ramp linearity
<0.05 % (1 kHz)
Rate
TSG4102A and TSG4104A
1 μHz to 500 kHz: < 62.5 MHz CF 1 μHz to 50 kHz: ≥62.5 MHz
TSG4106A
1 μHz to 500 kHz: < 93.75 MHz CF 1 μHz to 50 kHz: ≥93.75 MHz
Rate resolution
1 μHz
Rate error
1:231 + time-base error
Noise function
White Gaussian noise (rms = dev / 5)
Noise bandwidth
1 μHz < ENBW < 50 kHz
Pulse generator period
1 μs to 10 s
Pulse generator width
100 ns to 9999.9999 ms
Pulse timing resolution
5 ns
Pulse noise function
Length 2N-1 PRBS 5 ≤ N ≤ 32, bit period 100 nS to 10 S
Analog modulation output
Connector type
BNC (rear panel)
Impedance
50 Ω
Function
AM, FM, ΦM, Pulse
Scale factor
±1 V for ± full deviation
Pulse/Blank
Low = 0 V Hi = 3.3 V
External analog modulation input
Connector type
BNC (rear panel)
Impedance
100 kΩ
Function
AM, FM, ΦM, Pulse
Scale factor
±1 V for ± full deviation
Pulse/Blank
Low = 0 V Hi = 3.3 V
Input coupling
DC or 4 Hz High-pass
Pulse Threshold
+1 VDC
Input Offset
< 500 μV
Amplitude modulation
Range
0 to (decreases above +7 dBm)
Resolution
0.1%
Modulation source
Internal or external
Modulation distortion, typical
BNC output
<1 % (fc < 62.5 MHz, fm = 1 kHz)
N-type output
Modulation bandwidth (external)
>100 kHz
Frequency modulation
Minimum frequency deviation
0.01 Hz
Maximum frequency deviation
TSG4102A and TSG4104A
Smaller of fc and 64 MHz – fc. In 0 to 62.5 MHz
Frequency range Maximum deviation 62.5 MHz < fc ≤ 126.5625 MHz 1 MHz 126.5625 MHz < fc ≤253.1250 MHz 2 MHz 253.1250 MHz < fc ≤ 506.25 MHz 4 MHz 506.25 MHz < fc ≤ 1.0125 GHz 8 MHz 1.0125 GHz < fc ≤ 2.0 GHz 16 MHz 2.025 GHz < fc ≤ 4.0 GHz (TSG4104A) 32 MHz TSG4106A
Smaller of fc and 96 MHz – fc. In 0 to 93.75 MHz
Frequency range Maximum deviation 93.75 MHz < fc ≤ 189.84375 MHz 1 MHz 189.84375 MHz < fc ≤ 379.6875 MHz 2 MHz 379.6875 MHz< fc ≤ 759.375 MHz 4 MHz 759.375 MHz < fc ≤ 1.51875 GHz 8 MHz 1.51875 GHz < fc ≤ 3.0375 GHz 16 MHz 3.0375 GHz < fc ≤ 6.0 GHz 32 MHz
Deviation resolution
0.1 Hz
Deviation accuracy, typical
TSG4102A and TSG4104A
< 0.1% of selected deviation + 5 Hz (fc < 62.5 MHz) < 2% of selected deviation + 20 Hz (fc > 62.5 MHz)
TSG4106A
< 0.1% of selected deviation + 5 Hz (fc < 93.75 MHz) < 2% of selected deviation + 20 Hz (fc > 93.75 MHz)
Modulation source
Internal or external
Modulation distortion, typical
< -60 dB (fc=100 MHz, fm=1 KHz, fd= 3 KHz)
External FM carrier offset, typical
< ±0.001 X FM deviation
Modulation bandwidth, typical
TSG4102A and TSG4104A
500 kHz (fc < 62.5 MHz) 100 kHz (fc > 62.5 MHz)
TSG4106A
500 kHz (fc < 93.75 MHz) 100 kHz (fc > 93.75 MHz)
Phase modulation
Deviation
0o to 360o
Deviation resolution, typical
0.01o (DC to 100 MHz) 0.1o (100 MHz to 1 GHz) 1o (1 GHz and above)
Deviation accuracy, typical
TSG4102A and TSG4104A
2% (fc < 62.5 MHz) 3% (fc > 62.5 MHz)
TSG4106A
2% (fc < 93.75 MHz) 3% (fc > 93.75 MHz)
Modulation source
Internal or external
Modulation distortion, typical
< -60 dB (fc = 100 MHz, fm =1 kHz, ΦD = 50o)
Modulation bandwidth, typical
TSG4102A and TSG4104A
500 kHz (fc < 62.5 MHz) 100 kHz (fc > 62.5 MHz)
TSG4106A
500 kHz (fc < 93.75 MHz) 100 kHz (fc > 93.75 MHz)
Pulse modulation
Pulse mode
Logic High turns RF output ON
On-Off ratio, typical
BNC output
> 70 dB
Type-N output
> 57 dB (fc < 1.0 GHz) > 40 dB (1.0 GHz ≤ fc < 4.0 GHz) > 35 dB (4.0 GHz ≤ fc < 6.0 GHz)
Pulse feed-through, typical
10% of carrier for 20 ns at turn on
Turn On-Off delay
60 ns
RF Rise-Fall time, typical
20 ns
Modulation source
Internal or external pulse
Interface connectors
USB
USB 2.0, host
Ethernet (LAN)
10/100 Base-T.TCP/IP and DHCP default
GPIB
IEEE488.2
RS-232
4800 to 115,200 baud, RTS/CTS flow
External I/Q modulation (Option EIQ)
Carrier frequency range
400 MHz to 2.0 GHz (TSG4102A) 400 MHz to 4.0 GHz (TSG4104A) 400 MHz to 6.0 GHz (TSG4106A)
I/Q inputs (rear panel)
50 Ω, ±0.5 V
I/Q full scale input
(I2 + Q2)1/2 = 0.5 V
Modulation bandwidth
max 400 MHz RF bandwidth
I or Q input offset
<500 μV
Carrier suppression
> -45 dBc for fc ≤ 3 GHz > -40 dBc for 3 GHz < fc ≤ 5 GHz > -35 dBc for fc > 5 GHz
I and Q baseband modulation bandwidth (3 dB from fc)
> 200 MHz (fc < 2.5 GHz, RF BW >400 MHz) > 150 MHz (fc > 2.5 GHz, RF BW >300 MHz)
Dual baseband generator (Option VM00)
Channels
2 (I and Q)
DAC data format
Dual 14-bit at 125 MS/s
Reconstruction filter
10 MHz, 3rd order Bessel LPF
Arbitrary symbol memory
Up to 16 Mbits
Symbol rate
1 Hz to 6 MHz (1 μHz resolution)
Symbol length
1 to 9 bits (maps to constellation)
Symbol mapping
Default or user-defined constellation
Symbol source (User-defined symbols, built-in PRBS generator, or settable pattern generator)
PRBS length
2n – 1 (5 < n < 32; 31 to about 4.3 × 109 symbols)
Pattern generator
16 bits
Digital filtering
Filter type
Raised Cosine, Root Raised Cosine, Gaussian, Rectangular, Linear, Sinc, linearized Gaussian, C4FM, customized FIR
Filter length
24 symbols
Noise impairments
Additive noise
White, Gaussian
Level
–70 dBc to –10 dBc
Basic vector modulation formats (Option VM00)
Formats by bit
Constellation 1-bit 2-bit 3-bit 4-bit 5-bit 6-bit 8-bit ASK 2ASK 4ASK 8ASK 16ASK FSK BFSK 4FSK 8FSK 16FSK PSK BPSK QPSK 8PSK 16PSK QAM n/a 4QAM n/a 16QAM 32QAM 64QAM 256QAM CPM BCPM 4CPM 8CPM 16CPM VSB n/a n/a 8VSB 16VSB
Others
OQPSK, DQPSK, π/4DQPSK, 3π/8 8 PSK
Digital modulation applications (typical)
Digital modulation applications options
Option Application VM01 GSM VM02 GSM-EDGE VM03 W-CDMA VM04 APCO-25 Phase 1 VM05 DECT VM06 NADC VM07 PDC VM08 TETRA VM10 Audio clip (analog AM and FM)


Option VM03 W-CDMA, (QPSK,3.840Mcps, 2.1425GHz, 0dBm), RMS EVM: 1.7%


Option VM03 W-CDMA (QPSK,3.840Mcps, 1.85 GHz, 0dBm), RMS EVM: 1.7%









TSG4100A-ATT Option
Nominal impedance
50 Ω
Nominal attenuation
30 dB
Frequency range
DC to 6 GHz
Attenuation deviation
±0.75 dB (DC to 6 GHz)
Maximum VSWR
1.15 (DC to 4 GHz)
1.2 (4 GHz to 6 GHz)
Power rating
5 Watt average power up to 25 ?C ambient temperature, linearly derated to 1 Watt at 125 ?C ambient temperature.
Weight
0.052 kg
Operating temperature
-65 °C to 125 °C
Compliance
2011/65/EU (RoHS) compliant
Rear-panel markers
Type
Symbol Clock, Data Frame, TDMA, and user-defined
Amplitude
0.5 to 4 Vpp (–2 dBm to +16 dBm)
Output impedance
50 Ω, AC coupled
Physical characteristics
Dimensions
Height
114 mm (4.5 in)
Width
216 mm (8.5 in)
Depth
347 mm (13.7 in)
Weight
5.4 kg (12 lbs)
Operating characteristics
Temperature
Operating
+5 °C to +40 °C
Non-operating
-20 °C to +60 °C
Humidity
Operating Non-operating 5% to 95% relative humidity (%RH) at up to +30 °C 5% to 95% RH (Relative Humidity) at up to +30 °C 5% to 45% RH above +30 °C up to +40 °C, non-condensing 5% to 45% RH above +30 °C up to +40 °C, non-condensing
Altitude
Operating
Up to 3,000 m
Non-operating
Up to 12,000 m
Line power
<90 W, 90 to 264 VAC, 47 to 63 Hz with PFC
Vibration and shock
Random vibration
Operating Non-operating 0.27 GRMS, 5 500 Hz, 10 minutes per axis, 3 axes (30 minutes total for Option M01) 2.28 GRMS, 5 500 Hz, 10 minutes per axis, 3 axes (30 minutes total for Option M01) 0.22 GRMS, 5 500 Hz, 10 minutes per axis, 3 axes (30 minutes total for Options M00 or E1) 2.13 GRMS, 5 500 Hz, 10 minutes per axis, 3 axes (30 minutes total for Options M00 or E1) Mechanical shock
Non-operating Half-sine mechanical shocks, 50 g peak amplitude, 11 msec duration, 3 drops in each direction of each axis (18 total for Option M01) Half-sine mechanical shocks, 30 g peak amplitude, 11 msec duration, 3 drops in each direction of each axis (18 total for Options M00 or E1)
Regulatory information
EC Declaration of Conformity - EMC
EMC Directive 2004/108/EC
EN 61326-1
Radiated and Conducted emissions
Class A
Australia/New Zealand
Australia Radio Communications Act 1992
Korea
KCC
Safety
Third Party Certification Standards
UL 61010; CSA C22.2 No. 61010-1
EC Declaration of Conformity - Low Voltage
Low Voltage Directive 2006/95/EC; EN61010-1
Safety Certification Compliance
Equipment type: Test and measuring Safety class: Class 1 - grounded product Pollution degree: 2 (as defined in IEC61010-1) Rated for indoor use only.