IDT82V1671AJ IDT, Integrated Device Technology Inc, IDT82V1671AJ Datasheet - Page 38

• Manufacturer Part Number: IDT82V1671AJ
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT82V1671AJ

• Number Of Channels: 4
• On-hook Transmission: Yes
• Polarity Reversal: Yes
• On-chip Ring Relay Driver: Yes
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: PLCC
• Operating Temperature Classification: Industrial
• Pin Count: 28
• Mounting: Surface Mount
• Operating Current: 95mA
• Operating Supply Voltage (max): 3.465V
• Operating Supply Voltage (min): 3.135V
• Lead Free Status / RoHS Status: Compliant

Table - 11 Conference Mode
transferred via the PCM highways. Also when selecting new time slots,
it's recommended to switch off the PCM line drivers by setting the
corresponding P_DOWN bit to 1, CONF_EN bit and CONFX_EN bit to
0.
slots R1 and X1 are used. Voice data is transferred from an external
subscriber A to an internal subscriber S.
subscribers B, C and D. These three partners may be controlled by any
device connected to the PCM highways. To reduce the power
consumption, the channels of the local CODEC can be powered down if
they are not being used.
Table - 12 Active PCM Channel Configuration Bits
External Conference
External Conference
Internal Conference
RSLIC & CODEC CHIPSET
• PCM Off
When the chipset is just reset, or in the power down state, no data is
• PCM Active
This is the normal operating mode without conference. Only time
• External Conference
In this mode the chipset acts as a conferencing server for
+ PCM Active
P_DOWN
PCM Active
(LREG6)
PCM Off
Mode
1
0
0
0
0
0
0
1
1
0
0
1
1
0
0
P_DOWN
(LREG6)
CONF_EN
(GREG7)
1
0
1
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Configuration Bits
Control Bits
CONF_EN
(GREG7)
0
0
0
0
1
CONFX_EN
(GREG7)
CONFX_EN
(GREG7)
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1
1
0
R1
A
A
-
-
-
(GREG3)
L_CODE
Receive Time Slots
0
1
0
1
0
1
0
1
0
1
0
1
0
1
-
R2
B
B
B
-
-
38
R3
conference is supported in this mode. At the same time, if the channels
of the local CODEC are powered on (active), the subscribers connected
to the corresponding channels can make normal phones calls.
conference mode should be selected. Then, A three-party conference
can be held between the internal partner S and the external partners B
and C. In this mode, the CODEC channel which the partner S is
connected must be powered on.
3.8.3
channels. For details refer to
C
C
C
-
-
• External Conference + PCM Active
As in the external conference mode, any external three-party
• Internal Conference
If the subscriber S is one of the conference partners, the internal
HB LB
HB LB
HB LB
HB LB
Table - 12
PCM
PCM
PCM
PCM
X1
-
-
-
-
-
-
-
R4
D
D
-
-
-
CONTROL THE ACTIVE PCM CHANNELS
shows the register configuration for the transmit PCM
Off
Off
Off
X1
S
S
HB LB
HB LB
HB LB
HB LB
HB LB
HB LB
PCM
PCM
PCM
PCM
PCM
PCM
Transmit PCM Time Slot
X2
IDT82V1671/IDT82V1671A, IDT82V1074
-
-
-
Transmit Time Slots
G(C+D)
G(C+D)
G(C+S)
Off
Off
X2
“4.1.2 PCM Interface” on page
G(B+D)
G(B+D)
G(B+S)
X3
Off
Off
HB LB
HB LB
HB LB
HB LB
HB LB
HB LB
PCM
PCM
PCM
PCM
PCM
PCM
X3
-
-
-
G(B+C)
G(B+C)
Off
Off
Off
X4
Subscriber S
HB LB
HB LB
HB LB
HB LB
51.
PCM
PCM
PCM
PCM
G(B+C)
X4
-
-
-
-
-
-
-
Off
Off
A
A