CYG23XX Datasheet, PDF (3/5 Pages) Clare, Inc. – CYBERGATE

CYG23XX
Test Circuits
1. CYG23XX Transmit Insertion Loss
Rm
V_T
560
+5V
LINE1
LINE2
RING
GND
OH
MUTE
V_CC
TIP
RING
+V_BATT
I_{LOOP 10H}
V_LT
600
Transmit
Insertion
Loss
=
G_TR
=
20 Log
V_LT
V_T
10H
-V_BATT
2. CYG23XX Receive Insertion Loss
V_R
Rm
560
+5V
LINE1
LINE2
RING
GND
OH
MUTE
V_CC
+V_BATT
I_{LOOP 10H}
TIP
RING
600
V_LR
AC
Source
Receive Insertion Loss =
G_RC= 20Log
V_R
V _LR
10H
-V_BATT
Package Pinouts
LINE 1
LINE 2
RING
GND
OH
MUTE
V_CC
CYG23XX
1
2
3
4
5
6
7
11
10
Top View
TIP
RING
CYG23XX Pinouts & Definitions
PIN# I/O Name
1 I/O LINE1
Function
Transformer isolated audio signal coupling path for
the telephone line.
2 I/O LINE2 Transformer isolated audio signal coupling path for
the telephone line.
3 O RING Active LOW indicates an incoming ring signal. This
is pulsed LOW by the AC ring signal at the ring fre-
quency.
4 I GND Connected to host system ground.
5 I OH
Driving this pin LOW asserts the off-hook condi-
tion. The hookswitch LED is current limited by an
internal 470W resistor.
6 I MUTE Driving this pin LOW activates the mute relay for
pulse dialing. See Figure 1. The mute relay LED is
current limited by an internal 470W resistor or
7 I V_CC
Provides power to the hookswitch LED. Typically
+5V for 8mA LED current. LED is current limited
by an internal 470W resistor. V_CC should not
exceed 20V.
11 I/O RING Connection to telephone line Ring conductor.
10 I/O TIP Connection to telephone line Tip conductor.
Rev. 1
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