THAT1206 THAT Corporation, THAT1206 Datasheet - Page 4

• Manufacturer Part Number: THAT1206
• Description: (THAT1200 / THAT1203 / THAT1206) Ingenius High-cmrr Balanced Input Line Receiver
• Manufacturer: THAT Corporation

Page 4
robust RFI input protection. In applications where
RFI rejection is of less concern, the circuit shown Fig-
ure 4 provides a less aggressive approach.
provides the feedback path for the boostrap circuit.
The capacitor value is chosen to be high enough to
present a sufficiently small impedance to signals at
Parameter
Output Short Circuit Current
Minimum Resistive Load
Maximum Capacitive Load
RFI Protection
Bootstrap coupling capacitor
Figure 3 shows the THAT 1200 configured with
Referring to Figure 3, electrolytic capacitor Cb
200k
Ext. DC Source
In-
In+
R1
600R
R3
Gnd
THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA
Tel: [phone]; Fax: [phone]; Web: www.thatcorp.com
R2
200k
Electrical Characteristics (Cont’d)
C
R
Symbol
I
C
R
LCMmax
LCMmin
CMSC
I
Lmax
Lmin
SC
Figure 2. THAT1200-series test circuit
2
5
3
Applications
100u
100n
In-
CMin
In+
Cb
C3
CMout
Vee
R
Vee
At CM output
At CM output
At CM output
L
Conditions
= R
Vcc
Vcc
Ref
Lcm
THAT120x
Out
100n
C4
U1
= 0 W
the low end of the audio spectrum. Its voltage rating
is dependent on the topology of the surrounding cir-
cuitry, as described in the following paragraphs.
two ends of capacitor Cb to swing in tandem so that
virtually no voltage appears across the capacitor.
Consequently, capacitors with small DC working volt-
ages may be used when the previous stage is AC cou-
pled to the input of the THAT 1200.
AC signals presented to the input stage cause the
6
56p
C1
R4
2k
Min
10
—
—
—
—
2
100R
R5
C2
300p
InGenius Balanced Line Receiver
100R
R6
Typ
±25
±10
—
—
—
—
Preliminary Information
Max
300
50
—
—
—
—
Main Out
CM Out
Gnd
Gnd
Units
mA
mA
kW
kW
pF
pF