參數(shù)資料
型號: AD8532ARUZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 8/20頁
文件大?。?/td> 0K
描述: IC OPAMP GP R-R CMOS 3MHZ 8TSSOP
標(biāo)準(zhǔn)包裝: 2,500
放大器類型: 通用
電路數(shù): 2
輸出類型: 滿擺幅
轉(zhuǎn)換速率: 5 V/µs
增益帶寬積: 3MHz
電流 - 輸入偏壓: 5pA
電壓 - 輸入偏移: 25000µV
電流 - 電源: 750µA
電流 - 輸出 / 通道: 250mA
電壓 - 電源,單路/雙路(±): 2.7 V ~ 6 V,±1.35 V ~ 3 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 8-TSSOP
包裝: 帶卷 (TR)
AD8531/AD8532/AD8534
Rev. F | Page 16 of 20
DIRECT ACCESS ARRANGEMENT FOR TELEPHONE
LINE INTERFACE
6.2V
TRANSMIT
TxA
RECEIVE
RxA
C1
0.1F
R1
10k
R2
9.09k
2k
P1
Tx GAIN
ADJUST
A1
A2
A3
A4
A1, A2 = 1/2 AD8532
A3, A4 = 1/2 AD8532
R3
360
1:1
T1
TOTELEPHONE
LINE
1
2
3
7
6
5
2
3
1
6
5
7
10F
R7
10k
R8
10k
R5
10k
R6
10k
R9
10k
R14
14.3k
R10
10k
R11
10k
R12
10k
R13
10k
C2
0.1F
P2
Rx GAIN
ADJUST
2k
ZO
600
5V DC
MIDCOM
671-8005
0
10
99-
046
Figure 46 illustrates a 5 V only transmit/receive telephone line
interface for 600 Ω transmission systems. It allows full duplex
transmission of signals on a transformer-coupled 600 Ω line in
a differential manner. A1 provides gain that can be adjusted to
meet the modem output drive requirements. Both A1 and A2
are configured to apply the largest possible signal on a single
supply to the transformer. Because of the high output current
drive and low dropout voltage of the AD8531/AD8532/AD8534,
the largest signal available on a single 5 V supply is approximately
4.5 V p-p into a 600 Ω transmission system. A3 is configured as
a difference amplifier for two reasons: it prevents the transmit
signal from interfering with the receive signal, and it extracts
the receive signal from the transmission line for amplification
by A4. The gain of A4 can be adjusted in the same manner as
that of A1 to meet the input signal requirements of the modem.
Standard resistor values permit the use of single in-line package
(SIP) format resistor arrays.
Figure 46. Single-Supply Direct Access Arrangement for Modems
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