92HD92 Datasheet, PDF (12/306 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD92
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
2. DETAILED DESCRIPTION
2.1. Port Functionality
Multi-function (Input/Output) ports allow for the highest possible flexibility and supporting a wide vari-
ety 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 D supports
• BTL stereo output
• BTL (L+/L-) mono out
• Port E supports
• Headpone Out
• Line Out (I2S)
• Port F supports
• Line In (I2S)
• Mic with 0/10/20/30 dB boost and Vref_Out
• Mono Out supports
• Line Out
Pins 48-QFN
Port
Input Output Headphone BTL
28/29
A
Yes
Yes
Yes
31/32
B
Yes
Yes
40/41/43/44
D
Yes
Yes
17
E
Yes I2S
Yes
24
F
Yes I2S
25
Mono Out
Yes
48
SPDIF_OUT0
Yes
46
DMIC1/SPDIFOUT1/
Aux_In
Yes
Yes
4 (CLK=2)
DMIC0
Yes
Table 1. Port Functionality
Note: Pins 15/16/18 are shared for I2S clocking. Port C is vendor reserved for this device
Mic Bias
(Vref pin)
Yes
Input
boost amp
Yes
Yes
Yes
Yes
Yes
2.1.1.
Port Characteristics
Universal (Bi-directional) jacks are supported on ports A, E, and F for all family members. Ports A
and B are designed to drive 32 ohm (nominal) headphones or a 10K (nominal) load. Line Level out-
puts 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.
IDT CONFIDENTIAL
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©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
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92HD92