92hd83 Integrated Device Technology, 92hd83 Datasheet - Page 13
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92hd83
Manufacturer Part Number
92hd83
Description
Single Chip Pc Audio System Codec+speaker Amplifier+capless Hp+ldo
Manufacturer
Integrated Device Technology
Datasheet
1.92HD83.pdf
(294 pages)
- Current page: 13 of 294
- Download datasheet (4Mb)
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD83
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
2.1.1.
4 (CLK=2)
Pins
27
48
46
Port Characteristics
Universal (Bi-directional) jacks are supported on ports C, E, and F. Ports A and B are designed to
drive 32 ohm (nominal) headphones or a 10K (nominal) load. Line Level outputs are intended to
drive an external 10K load (nominal) and an on board shunt resistor of 20-47K (nominal). However,
applications may support load impedances of 5K ohms and above. Input ports are 50K (nominal) at
the pin.
DAC full scale outputs and intended full scale input levels are 1V rms at 5V. Line output ports and
Headphone output ports on the 92HD83 codec may be configured for +3dBV full scale output levels
by using a vendor specific verb.
Output ports are always on to prevent pops/clicks associated with charging and discharging output
coupling capacitors. This maintains proper bias on output coupling caps even in power state D3 as
long as AVDD is available. Unused ports should be left unconnected. When updating existing
designs to use the 92HD83 codec, ensure that there are no conflicts between the output ports on the
92HD83 codec and existing circuitry.
AFG Power State
D0-D2
D3
D3cold
D4
D5
DMIC1
SPDIF_OUT0
SPDIF_OUT1
Mono Out
DMIC0
Port
(CLK=2)
Input Enable
1
1
0
0
-
-
-
-
-
Input
Yes
Yes
Table 2. Analog Output Port Behavior
Table 1. Port Functionality
Output Enable
Output
13
Yes
Yes
Yes
1
0
1
0
0
1
-
-
-
Headphone
Port Behavior
Inactive (lower power) - Port keeps output coupling caps
Inactive (lower power) - Port keeps output coupling caps
Inactive (lower power) - Port keeps output coupling caps
Off - Charge on coupling caps (if used) will not be
Active - Port enabled as input
Active - Port enabled as output
Inactive -port is powered on (low output impedance) but
drives silence only.
charged if port uses caps.
Low power state. If enabled, Beep will output from the port
charged if port uses caps.
charged if port uses caps.
maintained.
Not allowed. Port is active as output. Input path is
92HD83
BTL
mute.
(Vref pin)
Mic Bias
PC AUDIO
boost amp
V 0.96 01/09
Input
Yes
Yes
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