diff --git a/dsp/benches/micro.rs b/dsp/benches/micro.rs
new file mode 100644
index 0000000..b0f5016
--- /dev/null
+++ b/dsp/benches/micro.rs
@@ -0,0 +1,51 @@
+use core::f32::consts::PI;
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+use dsp::{atan2, cossin, pll::PLL, rpll::RPLL};
+
+fn atan2_bench(c: &mut Criterion) {
+    let xi = (10 << 16) as i32;
+    let xf = xi as f32 / i32::MAX as f32;
+
+    let yi = (-26_328 << 16) as i32;
+    let yf = yi as f32 / i32::MAX as f32;
+
+    c.bench_function("atan2(y, x)", |b| {
+        b.iter(|| atan2(black_box(yi), black_box(xi)))
+    });
+    c.bench_function("y.atan2(x)", |b| {
+        b.iter(|| black_box(yf).atan2(black_box(xf)))
+    });
+}
+
+fn cossin_bench(c: &mut Criterion) {
+    let zi = -0x7304_2531_i32;
+    let zf = zi as f32 / i32::MAX as f32 * PI;
+    c.bench_function("cossin(zi)", |b| b.iter(|| cossin(black_box(zi))));
+    c.bench_function("zf.sin_cos()", |b| b.iter(|| black_box(zf).sin_cos()));
+}
+
+fn rpll_bench(c: &mut Criterion) {
+    let mut dut = RPLL::new(8);
+    c.bench_function("RPLL::update(Some(t), 21, 20)", |b| {
+        b.iter(|| dut.update(black_box(Some(0x241)), 21, 20))
+    });
+    c.bench_function("RPLL::update(Some(t), sf, sp)", |b| {
+        b.iter(|| {
+            dut.update(black_box(Some(0x241)), black_box(21), black_box(20))
+        })
+    });
+}
+
+fn pll_bench(c: &mut Criterion) {
+    let mut dut = PLL::default();
+    c.bench_function("PLL::update(t, 12, 11)", |b| {
+        b.iter(|| dut.update(black_box(0x1234), 12, 1))
+    });
+    c.bench_function("PLL::update(t, sf, sp)", |b| {
+        b.iter(|| dut.update(black_box(0x241), black_box(21), black_box(20)))
+    });
+}
+
+criterion_group!(trig, atan2_bench, cossin_bench);
+criterion_group!(pll, rpll_bench, pll_bench);
+criterion_main!(trig, pll);
diff --git a/dsp/benches/trig.rs b/dsp/benches/trig.rs
deleted file mode 100644
index df17a65..0000000
--- a/dsp/benches/trig.rs
+++ /dev/null
@@ -1,28 +0,0 @@
-use core::f32::consts::PI;
-use criterion::{black_box, criterion_group, criterion_main, Criterion};
-use dsp::{atan2, cossin};
-
-fn atan2_bench(c: &mut Criterion) {
-    let xi = (10 << 16) as i32;
-    let xf = xi as f32 / i32::MAX as f32;
-
-    let yi = (-26_328 << 16) as i32;
-    let yf = yi as f32 / i32::MAX as f32;
-
-    c.bench_function("atan2(y, x)", |b| {
-        b.iter(|| atan2(black_box(yi), black_box(xi)))
-    });
-    c.bench_function("y.atan2(x)", |b| {
-        b.iter(|| black_box(yf).atan2(black_box(xf)))
-    });
-}
-
-fn cossin_bench(c: &mut Criterion) {
-    let zi = -0x7304_2531_i32;
-    let zf = zi as f32 / i32::MAX as f32 * PI;
-    c.bench_function("cossin(zi)", |b| b.iter(|| cossin(black_box(zi))));
-    c.bench_function("zf.sin_cos()", |b| b.iter(|| black_box(zf).sin_cos()));
-}
-
-criterion_group!(benches, atan2_bench, cossin_bench);
-criterion_main!(benches);