User Manual

Stereo Module

2015 Microchip Technology Inc.
Page 21
P
reliminary
Edition
Table 3-7: AUDIO CODEC DIGITAL TO ANALOGUE CONVERTER
T= 25
o
C, V
dd
=3.0V, 1KHz sine wave input, Bandwidth = 20
Hz
~20KHz
Parameter
(
Condition
)
Min.
Typ.
Max.
Unit
Over
-
sampling rate
128
f
s
Resolution
16
20
Bits
Output Sample Rate
8
48
KHz
Signal to Noise Ratio
Note: 1
(SNR @cap-less mode) for 48kHz
96 dB
Signal to Noise Ratio
Note: 1
(SNR @single-end mode) for 48kHz
98 dB
Digital Gain
-54 4.85 dB
Digital Gain Resolution
2~6 dB
Analog Gain
-28 3 dB
Analog Gain Resolution
1 dB
Output Voltage Full-scale Swing (AVDD=2.8V) 495 742.5
mV rms
Maximum Output Power
(
16
Ω
load
)
34.5
mW
Maximum Output Power
(
32
Ω
load
)
17.2
mW
Allowed Load
Resistive 8 16 O.C.
Ω
Capacitive
500
pF
THD+N
(
16
Ω
load
)
0.05 %
Signal to Noise Ratio (SNR @ 16Ωload)
96 dB
Note:
(1) f
in
=1KHz, B/W=20~20KHz, A-weighted, THD+N < 0.01%, 0dBFS signal, Load=100KΩ
(2) These parameters are characterized but not tested in manufacturing.
Table 3-8: TRANSMITTER SECTION FOR BDR AND EDR
Parameter Min Typ Max
Bluetooth
specification
Unit
Maximum RF transmit power 3.0 4.0 -6 to 4 dBm
EDR/BDR
Relative transmit power
-4 -1.2 1 -4 to 1 dB
Note:
The RF Transmit power is calibrated during production using MP Tool software and MT8852 Bluetooth Test
equipment.
Test condition: VCC_RF= 1.28V, temperature=25 ºC.