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參數(shù)資料
| 型號： | SSM2135SZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO STER CLASS AB 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 放大器類型： | 音頻 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 0.9 V/µs |
| 增益帶寬積： | 3.5MHz |
| 電流 - 輸入偏壓： | 300nA |
| 電壓 - 輸入偏移： | 200µV |
| 電流 - 電源： | 3.7mA |
| 電流 - 輸出 / 通道： | 30mA |
| 電壓 - 電源，單路/雙路(±)： | 4 V ~ 36 V，±2 V ~ 18 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
SSM2135
Rev. G | Page 12 of 16
Single Supply Differential Line Driver
Signal distribution and routing is often required in audio systems,
particularly portable digital audio equipment for professional
applications. Figure 35 shows a single-supply line driver circuit
that has differential output. The bottom amplifier provides a
2 V dc bias for the differential amplifier to maximize the output
swing range. The amplifier can output a maximum of 0.8 V rms
signal with a 5 V supply. It is capable of driving into 600 Ω line
termination at a reduced output amplitude.
5V
1/2
SSM2135
1/2
SSM2135
AUDIO IN
100F
1k
DIFFERENTIAL
AUDIO OUT
5V
1/2
SSM2135
1k
2.5k
100
5V
7.5k
5k
1F
0.1F
2V
10k
1k
10F + 0.1F
00
34
9-
0
36
Figure 35. Single-Supply Differential Line Driver
Single-Supply Differential Line Receiver
Receiving a differential signal with minimum distortion is
achieved using the circuit in Figure 36. Unlike a difference
amplifier (a subtractor), the circuit has a true balanced input
impedance regardless of input drive levels; that is, each input
always presents a 20 kΩ impedance to the source. For best
common-mode rejection performance, all resistors around the
differential amplifier must be very well matched. Best results
can be achieved using a 10 kΩ precision resistor network.
1/2
SSM2135
AUDIO
OUT
1/2
SSM2135
20k
5V
1/2
SSM2135
DIFFERENTIAL
AUDIO IN
100
5k
1F
0.1F
2.5k
5V
7.5k
10
10F
20k
2V
20k
10F + 0.1F
00349
-03
7
Figure 36. Single-Supply Balanced Differential Line Receiver
Pseudoreference Voltage Generator
For single-supply circuits, a reference voltage source is often
required for biasing purposes or signal offsetting purposes. The
circuit in Figure 37 provides a supply splitter function with low
output impedance. The 1 μF output capacitor serves as a charge
reservoir to handle a sudden surge in demand by the load as
well as providing a low ac impedance to it. The 0.1 μF feedback
capacitor compensates the amplifier in the presence of a heavy
capacitive load, maintaining stability.
The output can source or sink up to 12 mA of current with a
5 V supply, limited only by the 100 Ω output resistor. Reducing
the resistance increases the output current capability. Alternatively,
increasing the supply voltage to 12 V also improves the output
drive to more than 25 mA.
1/2
SSM2135
V+ = 5V TO 12V
R3
2.5k
R4
100k
R2
5k
R1
5k
C1
0.1F
V+
2
OUTPUT
C2
1F
0
03
49
-0
38
Figure 37. Pseudoreference Generator
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SSM2139P | 制造商:Analog Devices 功能描述: |
| SSM2139S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| SSM2141 | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Common-Mode Rejection Differential Line Receiver |
| SSM2141P | 制造商:Rochester Electronics LLC 功能描述:H CMR DIFFERENTIAL LIN - Bulk 制造商:Analog Devices 功能描述:IC LINE RECEIVER |
| SSM-2141P | 制造商:Analog Devices 功能描述: |
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