AD8191AASTZ Analog Devices Inc, AD8191AASTZ Datasheet - Page 18

• Manufacturer Part Number: AD8191AASTZ
• Description: IC,Telecom Switching Circuit,QFP,100PIN,PLASTIC
• Manufacturer: Analog Devices Inc

Specifications of AD8191AASTZ

• Function: Switch
• Circuit: 1 x 4:1
• On-state Resistance: 100 Ohm
• Voltage Supply Source: Single Supply
• Voltage - Supply, Single/dual (±): 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD8191A
SERIAL INTERFACE CONFIGURATION REGISTERS
The serial interface configuration registers can be read and written using the I
The least significant bits of the AD8191A I
3.3 V (Logic 1) or 0 V (Logic 0). As soon as the serial control interface is used, the parallel control interface is disabled until the AD8191A
is reset, as described in the Serial Control Interface section.
Table 5. Serial (I
Name
High Speed
Device
Modes
Auxiliary
Device
Modes
Receiver
Settings
Input
Termination
Pulse
Register 1
Input
Termination
Pulse
Register 2
Receive
Equalizer
Register 1
Receive
Equalizer
Register 2
Transmitter
Settings
HIGH SPEED DEVICE MODES REGISTER
HS_EN: High Speed (TMDS) Channels Enable Bit
Table 6. HS_EN Description
HS_EN
0
1
HS_CH[1:0]: High Speed (TMDS) Switch Source Select Bus
Table 7. HS_CH Mapping
HS_CH[1:0]
00
01
10
11
Bit 7
RX_PT[15]
RX_EQ[15]
RX_EQ[7]
RX_PT[7]
O[3:0]
A[3:0]
B[3:0]
C[3:0]
D[3:0]
Description
High speed channels off, low power/standby mode
High speed channels on
2
C) Interface Register Map
Description
High Speed Source A switched to output
High Speed Source B switched to output
High Speed Source C switched to output
High Speed Source D switched to output
Bit 6
High
speed
switch
enable
HS_EN
Auxiliary
switch
enable
AUX_EN
RX_PT[6]
RX_PO[14]
RX_EQ[6]
RX_EQ[14]
Source A and Source B: input termination pulse-on-source switch select
Source C and Source D: input termination pulse-on-source switch select
Bit 5
0
0
RX_PT[5]
RX_PT[13]
RX_EQ[5]
RX_EQ[13]
Source C and Source D: input equalization level select
Source A and Source B: input equalization level select
2
(disconnect termination for a short period of time)
(disconnect termination for a short period of time)
C part address are set by tying Pin I2C_ADDR2, Pin I2C_ADDR1, and Pin I2C_ADDR0 to
Bit 4
0
0
RX_PT[4]
RX_PT[12]
RX_EQ[4]
RX_EQ[12]
Rev. 0 | Page 18 of 28
Bit 3
0
0
RX_PT[3]
RX_PT[11]
RX_EQ[3]
RX_EQ[11]
TX_PE[1]
pre-emphasis level select
High speed output
AUXILIARY DEVICE MODES REGISTER
AUX_EN: Auxiliary (Low Speed) Switch Enable Bit
Table 8. AUX_EN Description
AUX_EN
0
1
2
Bit 2
0
0
RX_PT[2]
RX_PT[10]
RX_EQ[2]
RX_EQ[10]
TX_PE[0]
C serial control interface, Pin I2C_SDA, and Pin I2C_SCL.
Description
Auxiliary switch off, no low speed input/output to
low speed common input/output connection
Auxiliary switch on
Bit 1
HS_CH[1]
AUX_CH[1]
RX_PT[1]
RX_PT[9]
RX_EQ[1]
RX_EQ[9]
High speed
output
termination
select
TX_PTO
Auxiliary switch source select
High speed source select
Bit 0
HS_CH[0]
AUX_CH[0]
High speed
input
termination
select
RX_TO
RX_PT[0]
RX_PT[8]
RX_EQ[0]
RX_EQ[8]
High speed
output current
level select
TX_OCL
Addr
0x00
0x01
0x10
0x11
0x12
0x13
0x14
0x20
Default
0x40
0x40
0x01
0x00
0x00
0x00
0x00
0x03