PM 6684

16in，2out，balance & unbalance
The PM 6684 is a high-end audio analyzer specifically designed for acoustic testing.
It features 16-channel analog signal input, with the option to choose between direct line output or connecting to an IEPE (Integrated Electronics Piece Equipment) constant current source exciter for conditioning microphones, artificial ears, accelerometers, and other IEPE-powered sensors.
It also offers 2-channel analog signal output, with the flexibility to select direct line output or to connect to an amplifier for output, thereby enabling the driving of artificial mouths, speakers, and other high-power loads.
This product boasts abundant channel resources and excellent specifications, capable of meeting the mass production acoustic testing needs for consumer products, assisting engineers in creating better products.

Description

Specifications

Parameter	Value
Number of analog input channels	16
Number of analog output channels	2
Number of analog output channels	USB
Product dimensions （LWH mm）【Excluding interface length】	440350134 mm
Interface type	BNC，CANNON，D-SUB25
Operating temperature	-20 - 50℃
External Trigger Interface	SMB

AI Specifications

AI Parameters
ADC Precision	24 Bit
ADC Type	Δ-Σ
Sample Rate Range Hz	1k - 192k
FIFO	1024
Mode Of Data Transmission	DMA
Input Range	+/- 125Vp
Gain Error	+/- 0.01dB
Input Impedance	Unbalance：300ohm ，600ohm ，100kohm Balance：300ohm ，600ohm ，200kohm
Flatness	20Hz - 20kHz，192kS/s，＜+/-0.008 dB

AI Idle Noise (uVrms)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	2.2	4.0	6.5
ps：[1]Short circuit source impedance < 50 ohm，Working temperature 23±5℃ [2]±1Vp Acquisition Range [3]AC coupling

AI SNR (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	120	115	108
PS：[1]Single-Ended Input, AC coupling, ±10V Peak (Vp) Range, Input Signal Amplitude at -1dBFS (9Vp), output impedance 20ohm, Input impedance 100kohm [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AI Dynamic Range (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	117	112	109
PS：[1]Single-Ended Input, AC coupling, ±10V Peak (Vp) Range, Input Signal Amplitude at -1dBFS (9Vp), output impedance 20ohm, Input impedance 100kohm [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]Hanning window [5]AC coupling

AI THD+N (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	-105	-95	-92
PS：[1]Single-Ended Input, AC coupling, ±10V Peak (Vp) Range, Input Signal Amplitude at -1dBFS (9Vp), output impedance 20ohm, Input impedance 100kohm [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AI Cross Talk (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	-112	-106	-99
PS：[1]Single-Ended Input, AC coupling, ±10V Peak (Vp) Range, Input Signal Amplitude at -1dBFS (9Vp), output impedance 20ohm, Input impedance 100kohm [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AO Specifications

AO Parameters
DAC Precision	24 Bit
Sample Rate Hz	1k - 192k
Output Range	+/- 10.5Vrms（Unbalance），+/- 21Vrms（Balance）
Gain Error	+/- 0.01dB
Output Impedance	Unbalance：20ohm，50ohm，75ohm，100ohm，600ohm Balance： 40ohm，100ohm，150ohm，200ohm，600ohm
Maximum output power of external resistor	4ohm 1.56w ; 8ohm 1.125w
Flatness	20Hz - 20kHz，＜+/-0.008 dB

AO Idle Noise (uVrms)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	1.3	2.0	3.0
PS：[1]Data acquisition device impedance greater than 1 Mohm, Operating temperature of 23±5°C [2]AC coupling

AO SNR (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	125	122	119
PS：[1]Differential Output, AC Coupling, Output signal amplitude of 2.5Vrms (Root Mean Square), Output impedance of 20 ohms, Input impedance of 100 Kohms [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AO Dynamic Range (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	112	110	108
PS：[1]Differential Output, AC Coupling, Output signal amplitude of 2.5Vrms (Root Mean Square), Output impedance of 20 ohms, Input impedance of 100 Kohms [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AO THD+N (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	-105	-98	-90
PS：[1]Differential Output, AC Coupling, Output signal amplitude of 2.5Vrms (Root Mean Square), Output impedance of 20 ohms, Input impedance of 100 Kohms [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AO Cross Talk (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	-125	-120	-118
PS：[1]Differential Output, AC Coupling, Output signal amplitude of 2.5Vrms (Root Mean Square), Output impedance of 40 ohms, Input impedance of 200 Kohms [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling