WM8734SEFL Wolfson Microelectronics, WM8734SEFL Datasheet - Page 8

• Manufacturer Part Number: WM8734SEFL
• Description: Audio CODECs Stereo CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8734SEFL

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-28
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8734
ELECTRICAL CHARACTERISTICS
w
Test Conditions
AVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 3.3V, DGND = 0V, T
otherwise stated.
PARAMETER
Digital Logic Levels (CMOS Levels)
Input LOW level
Input HIGH level
Output LOW
Output HIGH
Power On Reset Threshold (DCVDD)
DCVDD Threshold On -> Off
Hysteresis
DCVDD Threshold Off -> On
Analogue Reference Levels
Reference voltage
Potential divider resistance
Line Input to ADC
Input Signal Level (0dB)
Signal to Noise Ratio
(Note 1,2,3)
Dynamic Range (Note 3)
Total Harmonic Distortion
Power Supply Rejection Ratio
ADC channel separation
Programmable Gain
Programmable Gain Step Size
Mute attenuation
Input Resistance
Input Capacitance
SYMBOL
V
PSSR
R
C
V
R
SNR
THD
DNR
V
V
V
INLINE
INLINE
INLINE
V
V
V
V
VMID
VMID
OH
OL
OL
IH
IH
IL
th
Guaranteed Monotonic
A-weighted, -60dB full
A-weighted, 0dB gain
A-weighted, 0dB gain
A-weighted, 0dB gain
-1dB input, 0dB gain
TEST CONDITIONS
0dB, 1kHz input
1kHz 100mVpp
Rsource < 50Ω
20Hz to 20kHz
@ fs = 48kHz,
@ fs = 48kHz
@ fs = 96kHz
AVDD = 2.7V
scale input
1kHz input
1kHz input
12dB gain
100mVpp
0dB gain
A
= +25
0.7 x DBVDD
0.9 x DBVDD
o
C, Slave Mode, fs = 48kHz, MCLK = 256fs unless
-34.5
MIN
20k
10k
85
85
AVDD/3.3
AVDD/2
TYP
50k
30k
15k
0.9
0.3
0.6
1.0
-84
1.5
90
90
88
90
50
45
90
80
10
0
0.3 x DBVDD
PD, Rev 4.3, January 2009
DBVDD
0.10 x
MAX
+12
-74
Production Data
Vrms
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
pF
Ω
Ω
V
V
V
V
V
V
V
V
8