CS181022-CQZ Cirrus Logic Inc, CS181022-CQZ Datasheet - Page 44
![IC COBRANET CS181022 144LQFP](/photos/7/3/70378/cs181022-cqz_sml.jpg)
CS181022-CQZ
Manufacturer Part Number
CS181022-CQZ
Description
IC COBRANET CS181022 144LQFP
Manufacturer
Cirrus Logic Inc
Series
CobraNet®r
Type
Audio Processorr
Specifications of CS181022-CQZ
Package / Case
144-LQFP
Applications
Data Transport
Mounting Type
Surface Mount
Mounting Style
SMD/SMT
Number Of Converters
16
Core Size
32 Bit
Digital Ic Case Style
LQFP
No. Of Pins
144
Supply Voltage Range
1.71V To 1.89V
Operating Temperature Range
0°C To +70°C
Filter Terminals
SMD
Supply Voltage Min
3.13V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
598-1021 - MODULE COBRANET 4961 CM2 FB598-1020 - MODULE COBRANET 1810 CM2 MT
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
598-1026
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CS181022-CQZ
Manufacturer:
MYSON
Quantity:
320
Company:
Part Number:
CS181022-CQZ
Manufacturer:
Cirrus Logic Inc
Quantity:
10 000
Company:
Part Number:
CS181022-CQZR
Manufacturer:
Cirrus Logic Inc
Quantity:
10 000
CobraNet Hardware User’s Manual
Mechanical Drawings and Schematics
9.2
44
CM-2 Schematics
VCC_+3.3
connector
connector.sch
AUX_POWER[0..3]
SSI_DOUT[0..3]
C1
10 uF, X5R, 6.3 Volts
UART_TX_OE
SSI_DIN[0..3]
HADDR[0..3]
WATCHDOG
HDATA[0..7]
MCLK_OUT
UART_TXD
UART_RXD
REFCLK_IN
This linear regulator is used to assure that the +1.8v rail quickly passes
the 0.5v threshold at powerup, thus minimizing power sequencing issues
and making sure that the DSP does not draw excessive power as the
power rails ramp up. This linear regulator is set with Vout=1.22v, so it
is effectively shut off once the switching regulator comes up. Further
testing and characterization of the DSP is require to determine if this
linear regulator is in fact required.
This is a simple switching regulator. It produces
1.8V at >500 mA at about 90% efficency. A simple low drop
out linear regulator would be a cheaper alternative at the
expense of power. A linear regulator would dissapate
about 0.75 watts max, This switching regulator dissapates
about 0.10 watts max.
RSVD[1..5]
MCLK_IN
HRESET#
SSI_CLK
HACK#
MUTE#
HREQ#
HEN#
HDS#
HRW
FS1
4
1
Figure 24. CM-2 RevF Schematic Page 1 of 7
1
2
HRESET#
HEN#
HRW
HDS#
HADDR[0..3]
HDATA[0..7]
HREQ#
HACK#
WATCHDOG
MUTE#
UART_TX_OE
UART_TXD
UART_RXD
MCLK_OUT
MCLK_IN
REFCLK_IN
FS1
SSI_CLK
SSI_DIN[0..3]
SSI_DOUT[0..3]
RSVD[1..5]
AUX_POWER[0..3]
U1
LTC3406-1.8
VIN
RUN
U9
LTC1761
IN
GND
©
Copyright 2005 Cirrus Logic, Inc.
Vout/FB
OUT
BYP
ADJ
SW
core
core.sch
4
3
5
3
5
HRESET#
HEN#
HRW
HDS#
HADDR[0..3]
HDATA[0..7]
HREQ#
HACK#
WATCHDOG
MUTE#
UART_TX_OE
UART_TXD
UART_RXD
MCLK_OUT
MCLK_IN
REFCLK_IN
FS1
SSI_CLK
SSI_DIN[0..3]
SSI_DOUT[0..3]
RSVD[1..5]
AUX_POWER[3..0]
L1
2.2 uH
C45
0.01 uF
GPIO[0..1]
10 uF, X5R, 6.3 Volts
GPIO[0..1]
C2
C3
VCC_+1.8
GPIO[0..1] is not used elsewhere.
These pulldowns are used for test points and
to keep these signals at valid levels.
GPIO0
GPIO1
R1
R2
10K Ohm
DS651UM23
Version 2.3
GND