Answer Posted / adesh bandhu

CMMR is abbreviated as common mode rejection ratio.
it means cmmr of an amplifier tells the ablility to
amplify the differance signal more than the common signal
at the input of the two terminal of the amplifier.
so high value of cmmr is required ideally infinity. it
means the reduction of noise at the input.

CMMR=[AD/AC]
AD= differential gain of the amplifire.
AC= common mode gain of the amplifire.
IN decibel
CMMR(log)=20log[base10](ad/ac)

What is photodiode?

1026

---

What is the function of Bias Tee (BPxx) input Which power supply card required for Ultra BTS for DC 24V input What is the state if the GREEN LED is glowing on PWSx card

2524

---

What is the weight per meter (Kg/m)of 0.5mm dia copper 10 pair,50 pair and 100 pair,200 pair,500pair telephone cables?

2338

---

How many total no of channel bypass in one BTS.

2018

---

hello! i am a new/fresh industrial electronics enginner ? I am going to have an interview on 10 May. What topics and questions should i study for the preparation of my interview and what will be the possible questions that one can ask from a fresh industrial electronics engineer ?

2187

---

What types of inverters require feedback diodes?

1487

---

can u send me ttq upto 2008 on my email id pooja_bora18@yahoo.com.sorry for the trouble.

1946

---

numerical on resolution of ADC.

2752

---

Explain "VAR_INPUT" when defining a Function Block??

1972

---

What are the properties of FFT? What happens when you pass a signal of 1000Hz through an FFT?????

2301

---

how can i do offset compensation , phase compensation and gain ratio using DAC?

1897

---

What is the advantage of scr?

1104

---

What is the importance of if in radio receiver?

958

---

Explain why fet is known as voltage control device?

1007

---

what is bts ,what is e1 what is fifa card ,what is rri ,what is e1t1

2035

---