82V1074PF IDT, Integrated Device Technology Inc, 82V1074PF Datasheet - Page 77

• Manufacturer Part Number: 82V1074PF
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82V1074PF

• 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: TQFP
• Operating Temperature Classification: Industrial
• Pin Count: 100
• Mounting: Surface Mount
• Operating Current: 95mA
• Operating Supply Voltage (max): 3.465V
• Operating Supply Voltage (min): 3.135V
• Lead Free Status / RoHS Status: Not Compliant

RSLIC & CODEC CHIPSET
LREG9: Level Meter Source and Shift Factor Selection, Read/Write (08H/88H)
LREG10: Level Meter Threshold, Rectifier On/Off, Gain Factor, Read/Write (09H/89H)
DC_SRC
UTD_SRC
UTD_EN
K[3:0]
LM_SEL[3:0]
OTHRE
LM_GF
Command
Command
I/O data
I/O data
OTHRE
DC transmit/receive path selection for level meter
DC_SRC = 0:
DC_SRC = 1:
UTD source selection
UTD_SRC = 0:
UTD_SRC = 1:
Enable the universal tone detection unit
UTD_EN = 0:
UTD_EN = 1:
Shift factor selection for the level meter.
K[3:0] = 0000:
K[3:0] = 0001:
K[3:0] = 0010:
K[3:0] = 0011:
K[3:0] = 0100:
K[3:0] = 0101:
K[3:0] = 0110:
K[3:0] = 0111:
K[3:0] = 1000:
K[3:0] = 1001:
K[3:0] = 1010:
K[3:0] = 1011 to 1111: K
Source selection for DC Level Meter
LM_SEL[3:0] = 0000: DC voltage on VTDC is selected (default);
LM_SEL[3:0] = 0100: DC out voltage on DCN-DCP is selected;
LM_SEL[3:0] = 1001: DC voltage on VL is selected;
LM_SEL[3:0] = 1010: Voltage on IO3 is selected;
LM_SEL[3:0] = 1011: Voltage on IO4 is selected;
LM_SEL[3:0] = 1100: Voltage on RTIN is selected;
LM_SEL[3:0] = 1101: VDD/2 is selected;
LM_SEL[3:0] = 1110: VCM (offset of encoding) is selected;
LM_SEL[3:0] = 1111: Voltage on IO4-IO3 is selected;
Over threshold indication for level meter. This bit is read only.
OTHRE = 0:
OTHRE = 1:
Additional Gain Factor for level meter
LM_GF = 0:
LM_GF = 1:
R/W
R/W
b7
b7
LM_GF
b6
b6
0
0
signal from DC receive path is selected for level metering (default);
signal from DC transmit path is selected for level metering.
signal from receive path is detected by the UTD unit (default);
signal from transmit path is detected by the UTD unit.
the UTD unit is disabled (default);
the UTD unit is enabled.
The level meter result is below the threshold (default);
The level meter result is over the threshold.
No additional gain factor is selected (default);
Additional gain factor of 16 is selected.
K[3:0]
K
K
K
K
K
K
K
K
K
K
K
INT
INT
INT
INT
INT
INT
INT
INT
INT
INT
INT
INT
LM_RECT
= 1 (default);
= 1/2;
= 1/4;
= 1/8;
= 1/16;
= 1/32;
= 1/64;
= 1/128;
= 1/256;
= 1/512;
= 1/1024;
= 1/2048;
b5
b5
0
0
77
b4
b4
0
0
Reserved
b3
b3
1
1
b2
b2
0
0
IDT82V1671/IDT82V1671A, IDT82V1074
LM_SEL[3:0]
LM_TH[2:0]
b1
b1
0
0
b0
b0
0
1