92HD98 Datasheet, PDF (12/273 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD98
SINGLE CHIP PC AUDIO SYSTEM, CODEC+MONO SPEAKER AMPLIFIER+CAPLESS HP+LDO
2. DETAILED DESCRIPTION
2.1. Port Functionality
Multi-function (Input/Output) ports allow for the highest possible flexibility. 7 bi-directional ports, 2 are
headphone capable, support a wide variety of consumer desktop and mobile system use models.
• Port A supports
• Headphone Out
• Line Out
• Line Input
• Mic with 0/10/20/30 dB Boost
• Port B supports
• Capless Headphone Out
• Capless Line Out
• Port C
• Line In
• Line Out
• Mic with 0/10/20/30 dB Boost
• Port D supports
• BTL (L+/L-) mono out
• Port F supports
• Line In
• Line Out
• Mic with 0/10/20/30 dB Boost
Pins 40-QFN
23/24
26/27
15/16
35/36
13/14
40
38
3 (CLK=2)
Port
A
B
C
D
F
SPDIF_OUT0
DMIC1/SPDIFOUT1/
DMIC0
Input Output Headphone BTL
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(MONO)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Table 1. Port Functionality
Mic Bias
(Vref pin)
Yes
Input
boost amp
Yes
Yes
Yes
Yes
Yes
Yes
2.1.1.
Port Characteristics
Universal (Bi-directional) jacks are supported on ports A,C, 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 92HD98 codec may be configured for +3dBV full scale output levels
by using a vendor specific verb.
IDT CONFIDENTIAL
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©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
V 1.1 1/12
92HD98