GPCE040A

© Generalplus Technology Inc.

Proprietary & Confidential

14

Oct 01, 2013

Version: 1.4

Unit

Characteristics

Symbol

Min.

Typ.

Max.

Unit

ADC Power Dissipation for LINE_IN

IADC

-

1.0

-

mA

ADC Power Dissipation For MIC_IN

-

-

1.9

-

mA

ADC LINE_IN Input Voltage Range from

IOA[6:0]

VINL (Note 1)

VSS-0.3

-

VDD+0.3

V

ADC Microphone Input Voltage Range

VINM

VSS-0.3

-

VDD+0.3

V

External ADC Top Voltage

VEXTREF (Note 2)

2.0

-

VDD+0.3

V

Resolution of ADC

RESO

-

-

10

bits

Signal-to-Noise Plus Distortion of ADC from

Line In

SINAD (Note 4)

-

56

-

dB

Effective Number of Bit

ENOB (Note 5)

8.0

9.0

-

bits

Integral Non-Linearity of ADC

INL

-

-

LSB (Note 3)

Differential Non-Linearity of ADC

DNL (Note 6)

-

-

LSB

AD Conversion Rate

-

-

Fcpu/512

Hz

Microphone Amplifier Gain (Note 7)

-

-

42

dB

Note1:

Internal protection diodes clamp the analog input to VDD and VSS. These diodes allow the analog input to swing from (VSS-0.3V) to (VDD+0.3V)

without causing damages to the devices.

Note2:

The ADC performance is limited by the system noise level and therefore, the GPCE040A only guarantees to the 8-bit accuracy when VEXTREF is 2.0V.

Note3:

The LSB means Least Significant Bit. VINL = 2.0V, 1LSB = 2.0V/2^10 = 1.953mV.

Note4:

[6:0] input.

Note5:

ENOB = (SINAD-1.76)/6.02.

Note6:

The ADC of GPCE040A guarantees no data missed during conversion.

Note7:

The microphone amplifier maximum gain = 15 * (60K/(1.5K+REXT) V/V. The REXT is external resistor between OPI and MICOUT. The gain is 132V/V

(=42dB) when REXT is 5.1K.

Unit

Characteristics

Test condition

Symbol

Min.

Typ.

Max.

Unit

DAC resolution

VDD = 3.3V

RESO

-

-

10

bit

Signal to Noise Ratio of DAC

VDD = 3.3V

SNR

-

54

-

dB

Sample Rate

VDD = 3.3V

-

-

100K

Hz

VDD = 3.3V (2.0mA mode)

-

2.0

-

Output DAC current

(AUD1, AUD2)

VDD = 3.3V (3.0mA mode)

-

3.0

-

mA