D2-926XX Datasheet, PDF (32/37 Pages) Intersil Corporation – Integrated DSP Digital Sound Processing

D2-926xx
enabled, the algorithm supports specification entry of the I/O pin
to be used for the function.
TEMPERATURE SENSING
A thermal protection algorithm supports use of NTC resistors
placed in heat-sensitive areas of the amplifier. The algorithms
run and provide real-time temperature measurement.
Temperature values are available in firmware registers for
reading by a system controller, and set-points in the algorithm
can be used to trigger a controlled-attenuation level reduction or
fault shutdown.
THERMAL MANAGEMENT
An additional thermal protection algorithm supports a high
temperature warning input to trigger controlled-attenuation level
reduction. Rate of change and delay are programmable when the
feature is enabled.
DAE-3 And DAE-3HT Differences
The DAE-3 device family includes both the DAE-3 and DAE-3HT.
Functional specifications are identical to both designations of
this family. However, the DAE-3HT, provided in its smaller 72-pin
package supports system and assignable functions that are
mapped to the pins supported in that package. Complete pin
functions of all pins of both devices of the DAE-3 family are listed
in the Pin Description Tables.
Pin Function Mapping Between Devices
Table 3 lists the pin numbers, names and functions for both the
DAE-3 and DAE-3HT devices, and provides a mapping of the pin
functions between those devices.
PIN NUMBERS
DAE-3 DAE-3HT
1
1
2
2
3
3
4
4
5
5
6
6
8
7
9
8
10
9
13
10
36
19
37
20
TABLE 3. DAE-3 AND DAE-3HT PIN AND I/O COMPARISON TABLE
PIN NAMES
DESCRIPTION AND FUNCTION
DAE-3
SC20
SRD2
SC21
SCK2
STD2
SC22
SCK3
STD3
SC32
SRD3
SDA1
SCL1
DAE-3HT
SCLK3
(SC20)
SDIN3
(SRD2)
LRCK3
(SC21)
SCLK4
(SCK2)
SDIO4
(STD2)
LRCK4
(SC22)
SCLK12
(SCK3)
SDIN2
(STD3)
LRCK12
(SC32)
SDIN1
(SRD3)
SDA1
SCL1
DAE-3
I²S Input Port 1 SCLK
I²S Data Port 1, Input Channels 1-2
I²S Input Port 1 LRCK
I²S Input Port 2 SCLK
I²S Data Port 2, Input Channels 3-4
I²S Input Port 2 LRCK
I²S Input Port 3 SCLK
I²S Data Port 4, Input Channels 7-8
I²S Input Port 4 LRCK
I²S Data Port 3, Input Channels 5-6
2-Wire (I²C) Data Port (Controller Port)
2-Wire (I²C) Clock Port (Controller Port)
DAE-3HT
I²S Port 3 Input Channels 5-6 SCLK
I²S Port 3 Input Channels 5-6 Audio Input Data
I²S Port 3 Input Channels 5-6 LRCK
I²S Port 4 Input Channels 7-8, or Output Channels 1-
2 SCLK
I²S Port 4 Input Channels 7-8, or Output Channels 1-
2 Audio Data
I²S Port 4 Input Channels 7-8, or Output Channels 1-
2 LRCK
I²S Ports 1 and 2 Input Channels 1-4 SCLK
I²S Port 2 Input Channels 3-4 Audio Data
I²S Ports 1 and 2 Input Channels 1-4 LRCK
I²S Port 1 Input Channels 1-2 Audio Data
2-Wire (I2C) Data Port (Controller Port)
2-Wire (I2C) Clock Port (Controller Port)
119
65
SCK1
SCK1 I²S Output Port SCLK
/MCLK
123
68
TIO0
TIO0 Timer I/O Port 0.
/PSSYNC
127
71
SDA0
SDA0 2-Wire (I²C) Data Port
/TEMPREF
128
72
SCL0
SCL0 2-Wire (I²C) Clock Port
/TEMPNTC
27
16
TIO1
TIO1 Timer I/O Port 1, NTC Temp Sense Common
/NTC
125
70 PROTECT0 PROTECT0 PWM Channel 0 Protect Input
124
69 PROTECT1 PROTECT1 PWM Channel 1 Protect Input
Assignable GPIO or MCLK Output
Timer I/O Port 0, or Assignable Power Supply Sync
Output
Assignable I/O, NTC Temp Sense Reference
Assignable I/O, NTC Temp Sense NTC
Assignable I/O, NTC Temp Sense Common
PWM Channel 0 Protect Input
PWM Channel 1 Protect Input
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FN6787.3
May 17, 2016