ST TS634 User Manual

查询TS634供应商

DUAL WIDE BAND OPERATIONAL AMPLIFIER

■ LOW NOISE : 3.2nV/√Hz, 1.5pA/√Hz

■ HIGH OUTPUT CURRENT : 160mA min.

■ VERY LOW HARMONIC AND INTERMODU-

LATION DISTO RTION

■ HIGH SLEW RATE : 40V/µs

TS634

FOR ADSL LINE INTERFACE

■ SPECIFIED FOR 25Ω LOAD

DESCRIPTION

This device is particularly intended for applications
where multiple carriers must be amplified simulta­neously with very low intermodulation products. It
has been mainly designed to fit with ADSL
chip-set such as ST70134 or ST70135.

The TS634 is a high output current dual operation­al amplifier, with a large gain-band width product
(130MHz) and capable of driving a 25Ω load at
12V power supply. The TS634 is fitted out with
Power Down function in order to decrease the
consumption.

The TS634 is housed in SO20 batwing plastic
package for a very low thermal resistance.

APPLICATION

■ UPSTREAM line driver for Asymmetric Digital

Subscri ber Line (ADSL) (NT).

D

SO20 Batwing

(Plastic Micropackage)

ORDER CODE

Part

Number

Temperature

Range

TS634ID -40, +85°C

D=Small Outline Package (SO) - also available in Tape & Reel (DT)

Package

DP

•

PIN CONNECTIONS (top view)

SO20 batwing - To p V iew

Power Down 1

Inverting input 1

Non-inver ting i nput 1

Thermal Heat Tabs
connected to -Vcc

Non-Inverting i nput 2

Inverting input 2

Power Down 2

Vcc -

Vcc -

Vcc -

Vcc -

1

_

2
3

+

4
5

6
7
8

+
_

9

10

20
19
18

17
16
15
14
13

12
11

Vcc+ 1

Output 1

Vcc-

Vcc -

Vcc -

Vcc -

Vcc -

GND

Output 2

Vcc+ 2

Thermal Heat Tabs
connected to -Vcc

March 2003

1/9

TS634

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

T

T

Supply voltage

CC

V

Differential Input Voltage

id

V

Input Voltage Range

in

Operating Free Air Temperature Range TS634TS634ID -40 to +85 °C

oper

Storage Temperature -65 to +150 °C

std

T

Maximum Junction Temperature 150 °C

j

SO20-Batwing

R
R
P

1. All voltages values, except differential voltage are with respect to network terminal.

2. Differential voltages are non-inverting input terminal with respect to the inverting input terminal.

3. The magnitude of input and output voltages must never exceed V

Thermal Resistance Junction to Case 25 °C/W

thjc

Thermal Resistance Junction to Ambient Area 45 °C/W

thja

Maximum Power Dissipation (@25°C) 2.7 W

max.

OPERATING CONDITIONS

Symbol Parameter Value Unit

V

V

Supply Voltage ±2.5 to ±6 V

CC

Common Mode Input Voltage

icm

1)

2)

3)

+0.3V.

CC

(V

±7 V
±2 V
±6 V

) +2 to (V

CC

CC

+

) -1

V

APPLICATION: ADSL LINE INTERFACE

ASCOT ADSL
CHIP-SET

ST70135 ST70134

TX

emission
(analog
signal)

Power Down

RX

reception
(analog signal)

LP filter

4-bit Gain C ontrol

TS634
Line Driver

upstream

VGA

TS636
Receiver

downstream

HYBRID

CIRCUIT

twisted-pa ir
telephone
line

2/9

TS634

ELECTRICAL CHARACTERISTICS VCC = ±6Volts, T

= 25°C (unless otherwise specified)

amb

Symbol Parameter Test Condition Min. Typ. Max. Unit

DC PERFORMANCE

V

∆

Differential Input Offset Voltage

io

I

Input Offset Current

io

I

Input Bias Current

ib

CMR Common Mode Rejection Ratio

SVR Supply Voltage Rejection Ratio

I

Total Supply Current per Operator

CC

T

= 25°C

amb

T

amb

< T

< T

< T

< T

amb

amb

amb

amb

< T

< T

< T

< T

out

T

min.

T

amb

T

min.

= 2V to 2V, T

V

ic

T

min.

= ±6V to ±4V, T

V

ic

T

min.

No load, V

= 0

max.

max.

amb

max.

max.

amb

6mV

0.2 3
5

515

30
90 108
70
70 88
50

14 mA

DYNAMIC PERFORMANCE

I

= 160mA

V

High Level Output Voltage

OH

V

Low Level Output Voltage

OL

A

Large Signal Voltage Gain

VD

GBP Gain Bandwidth Product

SR Slew Rate

I

sink

I

source

Φ

Φ

Output Current

Phase Margin at A

M14

Phase Margin at A

M6

VCL

VCL

= 14dB RL = 25Ω//15pF
= 6dB RL = 25Ω//15pF

out

connected to GND

R

L

I

= 160mA

out

connected to GND

R

L

= 7V peak

V

out

R

= 25Ω, T

L

T

min.

A

VCL

= 100

R

L

A

VCL

= ±1V, T

V

id

T

min.

amb

< T

< T

amb

= +7, f = 20MHz

Ω

= +7, RL = 50

amb

< T

< T

amb

4 4.5 V

-4.5 -4 V

6500 11000

max.

5000

130 MHz

Ω

max.

23 40 V/µs

160
140

60 °
40 °

NOISE AND DISTORTION

en Equivalent Input Noise Voltage f = 100kHz 3.2 nV/√Hz

in Equivalent Input Noise Current f = 100kHz 1.5 pA/√Hz

V

= 4Vpp, f = 100kHz

out

A

THD Total Harmonic Distortion

IM2

IM3

2nd Order Intermodulation Product

-10

3rd Order Intermodulation Produ ct

-10

= -10

VCL

= 25Ω//15pF

R

L

F1 = 80kHz, F2 = 70kHz

= 8Vpp, A

V

out

VCL

= -10

Load = 25Ω//15pF
F1 = 80kHz, F2 = 70kHz

= 8Vpp, A

V

out

VCL

= -10

Load = 25Ω//15pF

-69 dB

-77 dBc

-77 dBc

A

µ

A

µ

dB

dB

V/V

mA

3/9